Astro 40SL 410 Lumen Rechargeable COB LED Slim Work Light Unique dial power switch has variable fluid adjustment from 0-410 lumens of light output 10 hour work time at 50% power, 2.5hrs at full power Swivel and stay base features a 20lb magnet that can be removed to shorten profile 40 chip COB LED array allows for light density up to 850% more than SMD LED's while consuming less power Externally and internally designed for harsh conditions and dirty environments