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How about the LED the lamp that shield an eye, ok
- The lamp that shield an eye does not recommend the use of LED, LED color temperature above 5000 k more, eyes are the most comfortable the best color temperature between 3500-4300 k, using leds to do the lamp that shield an eye too tired eyes. Recommend the use of three primary colors of eye hair yellow color of the brands
How long will leds last?
- Leds biggest characteristic is high efficiency, long life and light. You said it is durable? As for the price will be much more expensive than ordinary light bulbs, specific how many I can tell.s
Led lamp, good point light source or surface light source
- Not good surface light source,, the advantage is that the good anyways
LED lamp base fever is normal
- Generally under 10 watts, if the temperature is hot feeling only, not very hot (basic) under 40-50 DuDu is normal. If feel hot, can't stand that is high, the quality problemss
LED desk lamp and ordinary lamp which good?
- The best or dc lamp Now are using the compound light lamp There is a patent for inventions
LED lamp general 6/7 w is very bright, is too light is bad for your eyes
- Light is not bright, can be sure is there is something wrong with the wire or internal charging circuit has a problem. Judge fault: 1, if the line is broken, looking for businesses of the same wire, in a first try (don't have to buy wire to test), indicator is not; 2, the light is bad, but little chance (if this is the case, the battery doesn't charge into the electricity, the battery has high pressure resistance state sulfide, battery need to be repaired). 3, internal charging line fault: most likely internal CBB capacitor to boil road, need to change. For this kind of lamp, the most easily broken electronic components in the charging circuit is the CBB capacitance. Can go to the repair shop repair. Only more than 1, 3 kinds of possibility is high, the highest 3, was ruled out small battery (internal small battery) problem, because the light is not bright, batteries to electric light advocate the lamp, that the battery is resistance, capacitance resistance step-down charging circuit to charge of no-load voltage can reach more than 300 v, is impossible, and no current flows through the indicator as long as is good will on, even if the battery fully charge it into electricity, indicator light will be bright. I have a problem is battery repair instrument design engineers, can ask me, I design the battery repair instrument can repair indicator but any vulcanization of battery and charge it into electricity. There is a way to judge whether there is a current through the, is at the moment of plugged into the plug has a tiny 1 of "pa", or "chip", close to the ear, can hear, careful observation can even see tiny spark, then the CBB capacitance not bad, but the light is bad, and the battery has the possibility of sulfide. Downstairs and a brother named longsheng fushun said about the battery internal resistance and resistance capacity no-load voltage of charging circuit, considered a battery sulfide failure (charge it into electricity, indicator), but not necessarily.s
Led lithium battery lamp, rated input current 0.5 a
- Charging current is a bit big, easy to cause the battery heating, out in the end. Or the cause of desk lamp current charging circuit for burning.s
The led bulb loaded on the adjustable light lamp is broken
- If don't use without support, mount or will be relatively easy to burn out.s
What's emergency led light bar
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How do the flashlights work from the aspects of diode
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