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.

 01. What is the lead time?  canbus headlight led h7

      It ranges from 1 to 15 working days according to your order. Please enquiry the lead time from our

      salesperson.

02. How long is the warranty service?  canbus headlight led h7

      It ranges from 15 months to 5 years according to different products. Please enquiry the warranty service

      from our salesperson.

03. Do you provide samples?  canbus headlight led h7

      Yes, we do.

      We can provide samples of all the items listed. We can send the samples by DHL, FEDEX, UPS, TNT or

      EMS to your company.

04. Do you have products in stock?

      Yes, we do.

      We are manufacturer and wholesaler, so we usually do not have large quantity in stock.We provide fast

      shipping for most products. Please enquiry the shipping time from our salesperson.

05. How much will the shipping cost be?

      It depends on the size and weight of your order and the option of shipping. When you enquire shipping cost,

      we will need such detailed information as your post code, models & quantity of your order and the shipping

      option you prefer to. As usual, people who choose soft paper boxes spend less money on shipping cost than

      those who choose magnetic hard-paper boxes.

06. What if I have a defective item? Do I need to send it back to your company?

      For almost 99% products listed in our website, you don't need to send the defects back to us, you just need

      to cut off the wires/cables of the defective item and take a picture or video for us. Then we will send out a

      brand new replacement after we confirm it is our product.

07. 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.

08. Can I visit you?

      Yes, you can.

      Please inform us if you have a plan to visit our company, and we will make an arrangement for you.    

      Address: ROOM B6009, #2531, AIRPORT ROAD, GUANGZHOU 510425, GUANGDONG, CHINA

09. How can I contact you?

      You can talk to us online via Trademanager / Skype, or email us. And your email will be replied within 12

      hours

10. What’s your website?

      We have two websites as following:

      Company website: www.hid-led.com

      Alibaba website: china-mvp.en.alibaba.com / www.china-mvp.com