High performance LED With a steady color temperature of flicker-free (daylight: about 5,600K) that lifts the skin of your subject. Lightweight & compact design, it can be used as a handheld light as well as for camera mounting. Also, it generates almost zero heat, so it won't get hot even after long periods of use. Requires 6 AA batteries Alkaline batteries allow for approximately 1.5 hours of continuous illumination. Lithium battery can irradiate for approximately 7 hours. It is also LED so it has a long life (about 50,000 hours).