ThruNite TN32 UT/TN42/TN42C Thrower Flashlight TN42 is one high powerful thrower LED lights on the market, using one advanced CREE XHP35 HI LEDs with a lifespan of 20 years The high output reaches 2000 lumens and an ultra-long distance of 1550 meters. ThruNite ITC technology to prevents possible damage from overheating.Intelligent and ergonomic user-friendly interface. Uses one advanced CREE XHP35 HI LEDs with a lifespan of 20 years, Only applicable for 18650 batteries to use TN42 is equiped with 18650 battery holder, no battery come with flashlight.