These LED bulbs are made so that the LED's are in the same position as the H4 filaments, and the beam patterns are quite similar. For anyone interested, there are photos of the LED bulbs in the bay ad. H4 9003 HB2 LED Headlight Kit for RAV4 Tacoma 4Runner Camry Corolla Hi Low Beam | eBay. The 9003 vs H4 bulbs are two very different models that serve different purposes. The 9003 is meant for use on the road, while the H4 is better suited for off-road vehicles. Additionally, the H4 has a different base than the 9003, so it cannot be placed into a 9003 socket. Brent Ordway is an ASE-certified car technician. 2x H4 LED Headlight Bulb High and Low Beam Compatible for Toyota 4Runner 1996-2002 6000K. 3+ day shipping. $ 1950. 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set. 3+ day shipping. $ 2699. BMZONCC For Hyundai Accent 2000-2017 H4 9003 LED Headlight High Low Beam Bulbs Super White. Comprehensive guide to LED Headlight upgrades. For H4 replacement LEDs, there seem to be two types. One is the multi sided type, that keeps it simple with either 2, 3 or 4 sides in a unit. One side acts as a low beam by illuminating only the top part of the reflector, while the other side illuminates the top part of the reflector to create the Replace the whole lamp, the reflector needs to be made for LED, otherwise you will blind everyone around you and you wont have the focused cone that you can use to actually see stuff at night. LED light spreads in a different manner than halogen light, and you cant make a reflector that works for both for this reason. Group 1. H7 bulb / Group 1 Bulb. Most of the bulbs in a modern vehicle belong to Group 1. These include H7, H11, HB3, HB4 H1, H3, H4. This group contains headlight bulbs and takes in fog light bulbs. But of course, the sockets for the bulbs are different. Also, do note that all the bulbs in Group 1 may or may not have the same power ratings. This kit comes with two H4 LED direct-fit Headlight Bulbs that will be a replacement to your stock H4 bulbs. These LED bulbs will produce an intense, 1500 Lumen, bright white light that is much brighter than stock. Sold 2 bulbs per package. Fits all HD Road Glide models with stock halogen H4 Headlight Bulbs. I'm thinking of replacing my standard H4 halogen headlamp bulbs with LEDs. I did some searching on the forums and couldn't seem to find a discussion that wasn't more than a couple of years old. Since the technology is ever-changing, I thought I'd start an updated topic. App Vay Tiền.

can i replace h4 bulb with led