Notice:
If your light socket is standard, H4 to 3 Pin adapter is not needed.
If you buy 7x6 inch led headlights or 4x6 Headlight, and your car socket is not standard, H4 to 3 pin adapter is a "must".
The H4 to 3 pins wiring harness is a special design and can fits the headlights perfectly!
Interchange Part Number of 7x6/5x7 inch led headlights H6014/H6052/H6054/6054/H5054/H6054LL/69822/6052/6053.
Interchange Part Number of 4x6 inch led headlights: H4656/H4651/4651/4652/H4652/H4666/H6545
【Compatibility】The wiring harness sockets fits for H4 9003 HB2 LED headlight, and especially for 4"x6" 7"x6" 5"x7" 6"x8" sealed beam headlights. It's a perfect no matter your original headlight socket is H4 socket or not standard.
【Application】This wire headlamp connector are widely used, like car truck pickup heavy duty boat marine,but be sure to check the wire harness fit for your headlights or car models before purchasing. Socket Type: H4/9003/HB2. If you meet problems please let us know and advise us more details.
【Important】The pins of the headlights wire connector may be different for some vehicles, you may need to swap the pins. We list 3 types of pins not standard in the pictures for you to refer, if you meet this situtation,just swap and make it can plug in and the lights work normally.
【Specifications】Plug and Play. The H4 LED headlight wiring harness is 16cm/6.3inch,voltage:12V, wire gauge:14AWG. The socket is plastic and rubber insulated, waterproof and durable. High temperature resistance, strong performance, not easy to corrode, long lifespan.
【What You Get】4x H4 9003 HB2 headlight wiring harness. Worry-free Purchase, 2-Year, 45 days money back.
【Fitment】Interchange Part Number 7x6/5x7 inch led headlights: H6014 H6052 H6054 6054 H5054 H6054LL 69822 6052 6053; 4x6 inch led headlights: H4656 H4651 4651 4652 H4652 H4666 H6545. Work for Chevy P30 K5 Blazer K10 K20 Suburban Toyota Pickup. Toyota Tacoma GMC Jimmy Peterbilt.Kenworth, Freightliner etc