Astro 6500L Cordless 30 LED Inspection Light with Lithium Battery Cordless and rechargeable inspection light 30 LEDs provide bright, non-glare light which equals the same brightness as 550 Lumens Unit uses 3.7V-3600mAH Li-polymer Batteries - No Memory Effect with an active life of approximately 7-8 hours Full recharge time for batteries is approximately 4 hours Battery charger uses standard input 110V AC power or 12V