Fluorescent broken home, there are many causes, probably because there is no regulator, power fluctuations cause, there may be a lamp aging, here we analyze in detail next.
The phenomenon is: one or both ends of the lamp black, blackened large range, or around the 18W fluorescent tube black surface. Lamp does not light in motion, or have short flash, the action does not immediately extinguished discharge. Tube ends are issued without producing deep orange glow discharge effect. The reason enough to prolonged use, and the two electrodes simultaneously around the phosphor coating faded down or end faded off. At this point, you should replace the lamp.
Lamp usage time is not long, far below the nominal time. The reason is not suitable for the power supply voltage, switching frequency caused by too much to start, or because of poor contact pin. Approach is to identify the data ballast on? Minimize the switching frequency, detailed examination of parts and accessories for all contacts.
The bulb-end color, shading occurs in a wide range, black or brown rings ring. The reason for this phenomenon is the condensation of mercury lamps, ballasts and lamps do not match, or a bad starter quality. It should also measure the voltage compliance, the contact portions are good contact.
Tube ends only dark light without light, because the capacitor short circuit inside the starter or stick inseparable contacts or wiring errors. Treatment methods are: put a new starter Look.
Phenomenon is closed when the start switch, flash a long time, this continues, the lamp will soon be damaged. The reason for this 18W fluorescent tube may be fluorescent tube has been in use for a long life will end. If you are a new lamp that happens, then that is the quality of the lamp is not high, or because of outdated and useless starter. If the supply voltage is too low, the ambient temperature is too low or the lamp is difficult to start. Overhaul, if it is a new lamp should put it to another test a better light on what, if still difficult start, the lamp is a problem, as it proved to be a good test tube, then the regulator should be checked starter and ballast, or increase the voltage, or until the room temperature reaches room temperature before starting to use by the regulator.
Noise emitted 18W fluorescent tube ballasts, which was mainly due to problems caused by the installation undesirable, or ballast internal iron vibration, or the lamp and ballast specifications do not match, the ballast itself, fever, there are other reasons ballast partial short circuit.
This method of treatment 18W fluorescent tube is the ballast with a soft rubber cushion pad up so will reduce some noise. Also check the wiring for errors in detail, and then there are the ballast removed, alone with the rated voltage, so that you can determine whether there are problems with the ballast.
Monday, December 2, 2013
Sunday, December 1, 2013
"Black Thursday": 140 million Americans shopping on Thanksgiving Day
November 28 is the traditional American Thanksgiving holiday is Christmas shopping season officially began. This year is expected to have 140 million Americans will begin to line up Thanksgiving shopping "Black Friday" sale of goods. To rob tourists, major shopping malls promotional activities have been brought forward to the day of Thanksgiving, this year's "Black Friday" turned into "Black Thursday."
Each year on the fourth Thursday in November, after the American tradition of Thanksgiving holiday, opened the first day of Thanksgiving as "Black Friday", the day is generally considered the official start of the Christmas shopping season, a year in each of the most valued business is also one of the busiest days. What are the most popular Thanksgiving gifts?
But this year 's "Black Friday" has apparently evolved into " Black Thursday." To rob tourists this year, major shopping malls promotional activities have been brought forward to Thanksgiving Day. Large toy chain Toys R Us will be at 17 pm on Thanksgiving Day to open the door, Wal-Mart, Best Buy will be open on Thanksgiving 18:00, Macy's, Sears department stores will open on Thanksgiving evening 20:00. The largest U.S. discount retailer Kmart is the "Black Friday" door ahead of time to 6:00 in the morning of Thanksgiving, and intends to 41 consecutive hours, has opened the door to the "Black Friday" evening 23:00.
Merchants could not wait to start Thanksgiving " Black Friday" discount war, consumers do not appreciate, some comments on the social networking site called these businesses "greedy ", " ruthless " and let the store clerk not to spend Thanksgiving with family Day dinner.
Some consumers even online boycott "Black Thursday" activities. Frank in the online message says, "Hey, Kmart, you open the door completely on Thanksgiving respects your employees, my family and I will never spend a penny in your store."
Katie Reynolds online Buchanan wrote: "Macy's, I'm disappointed you open on Thanksgiving, let your employees and their families to spend the day until the end of the world Friday not to open the door."
According to the National Retail Federation survey, the forecast for this year's Thanksgiving holiday, the nation will have 140 million people to the store or shopping online, of which about a quarter of that 33 million people will be shopping on Thanksgiving Day. The "Black Friday" is still the biggest shopping holiday of Thanksgiving Day, there are about 97 million consumers plan to "Black Friday" shopping.
According to the American Automobile Association estimates that during the Thanksgiving holiday on November 27 to December 1, the nation's residents to travel more than 50 miles, about 4340 people, the number of trips than last year fell by 1.5%, 90% choose to travel by car, about 314 million people will travel by plane, there are about 140 million people will choose rail, bus and cruise ships and other transportation travel.
Each year on the fourth Thursday in November, after the American tradition of Thanksgiving holiday, opened the first day of Thanksgiving as "Black Friday", the day is generally considered the official start of the Christmas shopping season, a year in each of the most valued business is also one of the busiest days. What are the most popular Thanksgiving gifts?
But this year 's "Black Friday" has apparently evolved into " Black Thursday." To rob tourists this year, major shopping malls promotional activities have been brought forward to Thanksgiving Day. Large toy chain Toys R Us will be at 17 pm on Thanksgiving Day to open the door, Wal-Mart, Best Buy will be open on Thanksgiving 18:00, Macy's, Sears department stores will open on Thanksgiving evening 20:00. The largest U.S. discount retailer Kmart is the "Black Friday" door ahead of time to 6:00 in the morning of Thanksgiving, and intends to 41 consecutive hours, has opened the door to the "Black Friday" evening 23:00.
Merchants could not wait to start Thanksgiving " Black Friday" discount war, consumers do not appreciate, some comments on the social networking site called these businesses "greedy ", " ruthless " and let the store clerk not to spend Thanksgiving with family Day dinner.
Some consumers even online boycott "Black Thursday" activities. Frank in the online message says, "Hey, Kmart, you open the door completely on Thanksgiving respects your employees, my family and I will never spend a penny in your store."
Katie Reynolds online Buchanan wrote: "Macy's, I'm disappointed you open on Thanksgiving, let your employees and their families to spend the day until the end of the world Friday not to open the door."
According to the National Retail Federation survey, the forecast for this year's Thanksgiving holiday, the nation will have 140 million people to the store or shopping online, of which about a quarter of that 33 million people will be shopping on Thanksgiving Day. The "Black Friday" is still the biggest shopping holiday of Thanksgiving Day, there are about 97 million consumers plan to "Black Friday" shopping.
According to the American Automobile Association estimates that during the Thanksgiving holiday on November 27 to December 1, the nation's residents to travel more than 50 miles, about 4340 people, the number of trips than last year fell by 1.5%, 90% choose to travel by car, about 314 million people will travel by plane, there are about 140 million people will choose rail, bus and cruise ships and other transportation travel.
Thursday, November 28, 2013
Park lamp is an integral part in landscape design
Landscape design is an integral, but it is now not only plays the role of lighting, but also an important component of the landscape. Park lamp is most suitable colors white and blue. Other colors, such as red, orange or green, will make gardens and other green plant in the landscape becomes grotesque ugly. The footlights, rotating lights and colorful combinations of light effects worse, according to the rotation of the light ring on the surface of the pond, are dizzying. Therefore, the lighting design is still to be simple and practical.
From a practical point of view, when you walk through the garden after dark, but also to be able to see the road. So beside the porch, street, steps and seats are required for proper lighting. The brightness of the lights is a problem to be solved, the effect of low- intensity lighting is usually much better, but also to create a soft atmosphere. Good lighting is installed according to the actual results, usually according to the steps along the road sides and under the park lamp from low at the top than from scratch photographed lighting effects. Here, the key issue is the quality and position of lamps, rather than lighting design.
Lighting designer should be designed as a landscape art forms, drawing inspiration from the stage lighting techniques have dramatic effects in. To make your garden in the evening to be fully demonstrated, it is necessary to fully understand the best results of these techniques. Spotlight is the oldest and most direct stage lighting, which is usually a beam of light to illuminate an object from a height. In the garden, the spotlight can be used to highlight a statue or a plant. Its effect is to make a scene stand out in a dark background. Scattered light beam flood park lamp, lighting broader, softer lighting and more. Floodlight can be used in a scene, lighting or for a particular plant. Back lighting, as the name implies, is mounted on the back of the lamp body, highlighting its outline shape. It's critical that the light source is hidden, so back spot park lamp can create a truly theatrical effect.
Landscape art modern landscape lights are an indispensable part. It not only has a high ornamental itself, but also stressed that harmonization lamp landscape and scenic arts history and culture, the surrounding environment.
For example, red light lantern shape Landscape bring a festive atmosphere to the square, green palm lights stand out in the school of tropical pool. Landscape applies Plaza, residential areas, public green landscape places. Be careful not to use too diverse, so overwhelming, so cluttered landscape flashy.
From a practical point of view, when you walk through the garden after dark, but also to be able to see the road. So beside the porch, street, steps and seats are required for proper lighting. The brightness of the lights is a problem to be solved, the effect of low- intensity lighting is usually much better, but also to create a soft atmosphere. Good lighting is installed according to the actual results, usually according to the steps along the road sides and under the park lamp from low at the top than from scratch photographed lighting effects. Here, the key issue is the quality and position of lamps, rather than lighting design.
Lighting designer should be designed as a landscape art forms, drawing inspiration from the stage lighting techniques have dramatic effects in. To make your garden in the evening to be fully demonstrated, it is necessary to fully understand the best results of these techniques. Spotlight is the oldest and most direct stage lighting, which is usually a beam of light to illuminate an object from a height. In the garden, the spotlight can be used to highlight a statue or a plant. Its effect is to make a scene stand out in a dark background. Scattered light beam flood park lamp, lighting broader, softer lighting and more. Floodlight can be used in a scene, lighting or for a particular plant. Back lighting, as the name implies, is mounted on the back of the lamp body, highlighting its outline shape. It's critical that the light source is hidden, so back spot park lamp can create a truly theatrical effect.
Landscape art modern landscape lights are an indispensable part. It not only has a high ornamental itself, but also stressed that harmonization lamp landscape and scenic arts history and culture, the surrounding environment.
For example, red light lantern shape Landscape bring a festive atmosphere to the square, green palm lights stand out in the school of tropical pool. Landscape applies Plaza, residential areas, public green landscape places. Be careful not to use too diverse, so overwhelming, so cluttered landscape flashy.
Wednesday, November 27, 2013
6 steps: how to identify quality flexible RGB LED strips
Flexible RGB LED strips into production because of the low threshold, and therefore launched this project to many people. But experienced people still have a way to identify, formal manufacturers to produce flexible RGB LED strips and LED lights with cottage version (meaning depends on manual work products produced in the rental ) is seeing from the appearance of a out. Here's to our Rainbow Electronics Co., Ltd., light products, for example, talk about how good or bad with the eye to recognize quality LED lights with it.
LED lights with flexible RGB LED strips with the regular production is manufactured using SMT chip technology with solder paste and reflow processes of production. Thus, LED spot lights to bring the relatively smooth but not more than the amount of solder, solder joints to a circular arc extending from the LED electrode pads of the FPC. The amount of solder joints cottage version of LED lights with uneven, mostly a dot wrap welding foot, while there will be varying degrees of tin tip appears, which is a typical phenomenon of manual welding.
FPC of two copper and rolled copper, copper clad copper foils is projecting, and then looks at the FPC connector from the pad and look out. The FPC rolled copper is close and even as one can be bent and will not appear pad off phenomenon. Bonded Copper pad will appear if bent too much off, when the temperature is too high will result in the maintenance pad off.
If using SMT technology, the LED lights, and its surface cleanliness is very good, do not see any impurities and stains. However, if the use of hand- welding process to produce copycat version of flexible RGB LED strips, regardless of the surface cleaning, there will be residual traces of stains and cleaning, while there remains in flux and tin slag FPC surface.
Regular LED lights will use anti-static packaging trays volume, usually 5 m or 10 m roll, and then using anti-static moisture-proof outer bag sealed. The cottage version of the LED lights because of the cost savings, and the use of recycled roll tray, then there is no anti-static moisture-proof bags, look carefully roll trays can see when you look there are traces of clear labels and scratches.
Flexible RGB LED strips with regular bags and roll tray above will have a printed label, instead of printing labels. The cottage version of the label is printed, and specifications and parameters are not unified.
Regular LED lights will be accompanied by instructions for use inside the box and lights with specifications, while also equipped with LED lights with connectors or deck; cottage version of the LED lights inside the box without these attachments, because some manufacturers, after all, can be saved.
LED lights with flexible RGB LED strips with the regular production is manufactured using SMT chip technology with solder paste and reflow processes of production. Thus, LED spot lights to bring the relatively smooth but not more than the amount of solder, solder joints to a circular arc extending from the LED electrode pads of the FPC. The amount of solder joints cottage version of LED lights with uneven, mostly a dot wrap welding foot, while there will be varying degrees of tin tip appears, which is a typical phenomenon of manual welding.
FPC of two copper and rolled copper, copper clad copper foils is projecting, and then looks at the FPC connector from the pad and look out. The FPC rolled copper is close and even as one can be bent and will not appear pad off phenomenon. Bonded Copper pad will appear if bent too much off, when the temperature is too high will result in the maintenance pad off.If using SMT technology, the LED lights, and its surface cleanliness is very good, do not see any impurities and stains. However, if the use of hand- welding process to produce copycat version of flexible RGB LED strips, regardless of the surface cleaning, there will be residual traces of stains and cleaning, while there remains in flux and tin slag FPC surface.
Regular LED lights will use anti-static packaging trays volume, usually 5 m or 10 m roll, and then using anti-static moisture-proof outer bag sealed. The cottage version of the LED lights because of the cost savings, and the use of recycled roll tray, then there is no anti-static moisture-proof bags, look carefully roll trays can see when you look there are traces of clear labels and scratches.
Flexible RGB LED strips with regular bags and roll tray above will have a printed label, instead of printing labels. The cottage version of the label is printed, and specifications and parameters are not unified.
Regular LED lights will be accompanied by instructions for use inside the box and lights with specifications, while also equipped with LED lights with connectors or deck; cottage version of the LED lights inside the box without these attachments, because some manufacturers, after all, can be saved.
Tuesday, November 26, 2013
Power Power announces new 25W LED T8 bulb ballast power supply
For
general illumination of the LED driver IC leader in the field of Power
Integrations, Inc. today announced the release of a new 25 W LED T8 bulb
ballast power supply reference design. The design (T8 bulb) The most
striking is that efficiency of over 91%, achieving industry leading
level, while the power factor (PF greater than 0.9 ) and harmonic
distortion (EN61000-3-2 Class C) areas to meet commercial requirements.
T8 bulb is using LinkSwitch-PH family of LED driver IC designed LNK409EG single stage converter. Single-stage technology by eliminating the conventional two-stage design used in optical isolators and large aluminum electrolytic capacitors can greatly extend the life of the product.
Power Integrations, product marketing manager Andrew Smith said: "The lighting in improving the overall luminous efficiency, achieve high power conversion efficiency and LED choices are equally important, if not a single-stage topology, in the narrow space T8 lamps in a cost -effective way to maximize efficiency above 88% is extremely difficult thing, while the efficiency of the design was easily more than 91%."Smith added: "Most areas require commercial and industrial lighting products must have low THD or high PF - LinkSwitch-PH LED driver IC can easily meet the requirements of this specification, so that the final design for the global market. More information, see this new designs paradigm report. "
In addition to using the controller, drives, and switching MOSFET simultaneously integrated into a single package within a highly integrated single-chip design outside, Power Integrations' LinkSwitch-PH product line also includes thermal protection and over-current protection, including many protection functions. This means that only very few external components to achieve design plan - which for T8 lamps compact space is extremely important.
T8 bulb is using LinkSwitch-PH family of LED driver IC designed LNK409EG single stage converter. Single-stage technology by eliminating the conventional two-stage design used in optical isolators and large aluminum electrolytic capacitors can greatly extend the life of the product.
Power Integrations, product marketing manager Andrew Smith said: "The lighting in improving the overall luminous efficiency, achieve high power conversion efficiency and LED choices are equally important, if not a single-stage topology, in the narrow space T8 lamps in a cost -effective way to maximize efficiency above 88% is extremely difficult thing, while the efficiency of the design was easily more than 91%."Smith added: "Most areas require commercial and industrial lighting products must have low THD or high PF - LinkSwitch-PH LED driver IC can easily meet the requirements of this specification, so that the final design for the global market. More information, see this new designs paradigm report. "
In addition to using the controller, drives, and switching MOSFET simultaneously integrated into a single package within a highly integrated single-chip design outside, Power Integrations' LinkSwitch-PH product line also includes thermal protection and over-current protection, including many protection functions. This means that only very few external components to achieve design plan - which for T8 lamps compact space is extremely important.
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