Universal 12 Volt R4 Led Headlight , 9012 Headlight Bulb Led Replacement

01. Dash Board Error Message:

As we all know, many modern luxury cars have their computer systems built into the dashboard. The computer system will detect whether the sepecifications of the replacement bulb match the original bulb. However, LED bulb is more energy saving with lower output power, which means the computer system will misjudge the LED bulb doesn't match the wattage of original system, then there will be an error signal showing on your dashboard. In this situation, we need to adjust the wattage to meet the computer default parameters. Basically the bulb will match perfectly by installing a resistor to enlarge the wattage. Recommend our CANBUS LED headlight which is compatible with most luxury cars, especially European cars.(the models built in constant current, non-polarity, anti 18V electrical surge will much better to solve the problem)

02. Flash Speed for Signal/Turn Light:

Normally, when you turn on signal lights, two side of turning lights will flicker at same slow speed. However, if you have modified your light to use LEDs for some Luxury Cars, you'll notice that the turn signals now flicker very quickly. It is caused by the low resistance of the LEDs due to the fact that they use less energy. To solve this problem, you need to install a resistor or control flasher. (Our CANBUS LED headlight also can avoid this kind of problem on most cars.)

03. About LED Chips Power and Operating Power:

"POWER" in specification is the power of LED CHIPS, not the working/operating power of the LED headlights, WORKING/OPERATING POWER=DC12V * CURRENT;

For example: H7-4*5W: It's so-called 20W in this industry, due to it's made by 4pcs of 5W Cree LED chips, But its working/operating power is only=DC 12V * 0.3A=3.6W (ranging from 3.6W to 5.0W actually), IT'S NOT "MORE POWER, MORE LUMINA", CERTAIN SMALL POWER MAKES LED CHIP WITH MORE LUMINA AND STABILITY.

FAQ:

How about your Service?

OEM packaging and ODM service on request.

Any question or inquiry will be replied in time

How to process your Quality Control?

All products must go through five checks before manufacturcing process

Revelant material check before production

Full check after every individual process finished

Full check after production half-done

Spots check after production packed before shipping

What is the warranty claim process?

Please allow me to take it for example that if there's a defective ballast.

Step 1. Cut off wires of the defective ballast;

Step 2. Take a picture on which we can see the serial number;

Step 3. Send the picture to us;

Step 4. We will check whether the ballast is from us;

Step 5. If it is from us, we'll send you a brand new ballast as replacement with your next order.

What about Guarantee?

Customer’s interestes can be full guaranteed

Every defective product or quality problem within warranty (except for human-made intentionally damage) can be replaced with brand new one.