Holographic sight

Battery life

Holographic sights have shorter battery life when compared to reflex sights that use LEDs, such as red dot sights. The laser diode in a holographic sight uses more power and has more complex driving electronics than a standard LED of an equivalent brightness, reducing the amount of time a holographic sight can run on a single set of batteries compared to a red dot sight, around 600 hours for typical holographic sights, compared to sometimes up to tens of thousands of hours for red dot sights. For example, the Vortex Razor AMG UH-1 holographic sight has been quoted as having an expected battery life of 1,000 to 1,500 hours (1½ to 2 months) on medium setting. The Aimpoint CompM5s red dot sight has an expected battery life of around 8,000 to 50000 hours (1 to 5 years) depending on the setting.