It is important to understand the distinctions between these two headlight bulbs since they are extremely alike. The wiring appears to be the identical, however, it’s not an exact match, so you should be able to recognize and change each one in order to reach your goals: It’s truly amazing how many different headlights are available in the 12v automotive lighting market, so why do we have so many designs to pick from? Are there any headlights that are superior to the other? Is an H4 headlight bulb able to have a higher light output than 9007 LED bulb? Do you think a 5202 is a superior fog lighting bulb over 9145? The same questions are asked every day and the answers to these questions are not clear, however, due to the huge range of light bulbs on the market, in the market today, the variety of aftermarket LED and HID bulbs isn’t easy to find.
To reduce the number of products that retailers have to stock in their stores, manufacturers from the aftermarket have developed “one size fits all” kinds of replacement bulbs
For instance, the 9145 and 9005 incandescent and halogen light bulbs all have the same type of base however; they are classified at different wattages and generate different amounts of light. In the HID and LED world, all those bulbs are replaced with the same bulb, more often referred to as the 9005. Similar to the 9004 and 9007 incandescent halogen light bulbs are almost identical, however, they do have some distinct differences. First, the pin layout The 9007 has the ground pin located in the middle, with high and low positive pins on the exterior. The 9004 is equipped with an earth pin on one of the sides and on the middle and on the other side pin positive to control high beam as well as low beam.
Fit your Requirements
If you attempt to upgrade your bulbs which use either a 9004 or a 9007 with HID, you will be presented with just one bulb choice, and after installation, must be configured to fit your requirements: The HID bulb will be fitted with notches to allow it to be used with either a 9004 or a 9007 bulb. You will also be able to swap the pins so that they fit any bulb style: If you’re in search of the best HID bulb to improve the performance of the 9004 and 9007 twin beams to LED and LED, we suggest the latest metal-based bulb kit by GTR Lighting.
It includes two fashionable and modern “swing” bulbs along with an updated Relay harness that is waterproof. When you get this kind of HID kit via mail, the blue 9004/9007 connector on the relay harness is fitted with the more well-known 9007 wirings. To enable this kit to function with a headlight that is 9004 style the only thing you need to do is to switch the pins to ensure that they are properly oriented.