Led Dome Lights For Cars
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FAQ
- What does "A19" mean in LED A19 bulb?
- I'm studying too! There's a problem for everyone to discuss
- 60W how many lumens and how many W LED bulb does incandescent bulb replace?
- A LED lamp lumens general good point value is above 100;The brightness of 60W incandescent lamp compares with LED lamp difference is 10 times;
- LED bulb after the power failure, still glimmer, can last hours or even all day, what is the reason?!
- If it is to continue the glimmer of minutes, the main side is the use of resistance and step-down circuit caused by the normal phenomenon. It's very rare for the factory to use this old model to make LED balls. Circuits that run for hours or all day on the side of the LED bubble are out of order. It's not normal to shine for so long. Now most of the LED bulb is using IC constant current supply circuit, no such situation has emerged.
- What are the driving IC used in LED bulb?
- The analysis report shows that nearly three years, the domestic market share of LED lamps will increase from 5% to about 20%-30% can be seen, LED is now the need to walk into the homes of ordinary people, so we need to control the cost, cost is the main driving power LED lamp and a shell, a power driven material faster BOM province can let the promotion of LED. As the LED lamp has the characteristics of energy saving and environmental protection, the state has also subsidized the product accordingly.
- Why can't the voice switch control the time of the LED bulb?
- The production lights can be controlled. Where do they go to consult?
- LED bulb lamp drive power electrical connection, will delay a few seconds before the lamp light, and power creaks, who know what it is!
- The most direct and simplest answer is the power problem.
- What is the AC voltage of the LED bulb?
- LED lamp or constant voltage drive, generally through the drive circuit filter rectifier, LED bulb bulb AC voltage is generally 220V, power is divided into 3W, 5W, 7W, 8W, 9W, 12W and so on.
- What's the reason why LED bulb gets a lot of heat?
- LED light is a large amount of heat, more than 70% are calories. Different manufacturers are not very different
