LED vs Incandesent Tail Light Bulb Review

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Here's a comparison video of an LED tail light bulb vs the incandescent tail light bulb installed in a Lexus ES330.

Using LED's on the tail light housings are a good way to upgrade your vehicle's looks. But the question is, does it increase visibility? Are they worth paying the premium for? Will it outlast an incandescent bulb?

This is a review and comparison video of the stock incandescent bulb vs a high power LED bulb.

The tail/ brake light bulbs were purchased from myled.com:


They are red 7443 T20 wedge style bulbs, that consume 7.5W. They are dual function so they can work as a tail light and brake light.

The bulb is constructed with a plastic base and an aluminum body. There are 4 SMD LED's around the circumference and a high power projector style LED at the top.

Installation is easy with two gripes:
- The LED bulb is double the length of an incandescent bulb, so ensure there is enough space in the tail light housing.
- The tail light warning bulb will illuminate on the dashboard because LED's draw so little current. You can choose to ignore or disable it.

Comparing the lights, the LED puts out much brighter light across as a tail light. However, tables turn when you step on the brake, and from a distance, the incandescent light is much brighter.

Against a wall, the incandescent bulb produces a better, more usefully distributed light pattern compared to the LED.

Therefore the only advantage to having an LED bulb is its instant transient time to turn on and turn off. Arguably, this could be a safety enhancement, but it may not be worth the extra cost.