Diode Dynamics 921 LED Bulb HP36 LED - Cool - White (Pair)

Features Brighter, cool white LED output Direct replacement for Cadillac ATS reverse light bulb Plug and play, no modification with factory 921 bulb size Improved visibility behind vehicle Available in multiple brightness levels Overview Brighter Backup. These replacement LED bulbs are a great way to improve the look and function of the reverse light on your Cadillac ATS. You will get higher visibility at night, with a modern look. The installation is straightforward, with just a bulb swap - making this one of the easiest ways to improve the ATS's lighting. Brightness. All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or guesses. We test the true output in-house, and provide you the real numbers to compare. Colors that match. Most of us have seen lighting setups with random shades of white that don't quite match. At Diode Dynamics, we operate an integrating sphere, which is a piece of lab equipment used to analyze exact color spectru