GTR Lighting LED Bulbs, 921 / T15 Ultra Reverse Light Bulbs(1 pair), Worlds Brightest Plug and Play Back up Lights, Pure White, Error Free. (2 x GTR.LED434)

Decided to upgrade to these bulbs about a year ago, very pleased with the quality! These things are insanely bright and have survived two ice storms and triple-digit summers. The only negative is the price, but it's a great product so I can justify it as GTR lighting is top tier. Installed in a 2010 F-150 King Ranch with aftermarket taillights.

Lights are probably great, but they do not work with the 2024 GMC Sierra. The housing is sealed.

Investigué muchísimo antes de comprar, los materiales de fabricación son excelentes, el patrón de iluminación es lo que los destaca del resto de las opciones ya que iluminan a 360" e integra la lupa delantera (15 chips en total) que lo hace el complemento ideal, quedaron instalados en un ford Fiesta 2011 mk7.Saludos desde Argentina!

Installed this product in my 2016 suburban LTZ. The light output is phenomenal and far beyond all expectations. The installation was simple and the rubberized ring that connects where the original bulb goes in the housing is pliable, yet seals well to prevent moisture.The only reason for only giving four stars would be the lack of any boot to seal the electrical connection. This bulb not only takes the place of the 921/T15 bulb, but it also takes the place of the connector that fits into the light assembly that normally seals the electrical connection. While the bulb is plug and play with the factory wiring, the lack of any seal on the connection could lead to future corrosion and premature failure of the bulb/wiring. However, this issue is easily mended with some dielectric grease or heat shrink.

Did not work with 2021 GMC Sierra AT4 as advertised.

easy to install, working well, lots brighter than stock

These are awesome 👏👍

Light went In easily but the wire connection wasn’t the easiest to get together