led color white lumens 200 run time up to 40 hours low beam 3 hours high beam effective range up to 636 ft 194 m signal visibility up to 2 5 mi 4 02 km battery type 2x cr123a lithium batteries included uniform spot to flood focus beam high powered energy efficient lifetime led patented precision optical system provides thermal management while harnessing and projecting a powerful beam shockproof crushproof and water resistant machined from solid ba