Custom Car Interior Lighting

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FAQ

What does "A19" mean in LED A19 bulb?
A represents the bubble type, A hemisphere bubble 19, and the back figure indicates the bubble size (mm in diameter)
LED bulb bulbs, do you need 3C certification now?
LED bulb is not required to do 3C certification, and can not do 3C certification, LED bulb is a light source, not lamps, there is no company's LED bulb made 3C, CQC done there.
LED can the bulb be used in the bathroom?
of couse Yes, but LED kitchen and toilet light is recommended
What are the driving IC used in LED bulb?
MT7930, LM3445MM do bulb bulb, the effect is also ok.
LED what is the plastic shell of the bulb? What plastic material is better? What do you need to pay attention to?
You should say that the bulb of the bulb, usually PC material.
How to identify Ic constant current LED bulb?
Look at the power supply, there are a few simple electronic and capacitive circuit board, it is not constant flow, cross flow is larger, so understand? Cross flow IC, that is, the meaning of intelligent voltage regulator, so that the LED is not easy, bad capacitor driven LED is relatively easy to damage, easily breakdown, and power consumption than the cross flow
Want to buy a few LED bulb, do not know how to identify the quality of good or bad, ask for solution ~!
A light source, two power supply, three workmanship.Online shopping, I strongly suggest that you buy some reliable.
Are there any differences between negative ion bulb and LED bulb?
The negative ion belongs to bullshit type, the concept of things!