BESTSUN Super Bright 3800 Lumens 3 x CREE XM-L T6 LED Flashlight Torch High Quality 3800Lm Super Bright 3X CREE XM-L T6 LED Flashlight. Adopts 3 pieces of CREE XM-L T6 LED, Output bright can achieve to to be 3800 lumen. The body of flashlight is built of aircraft-grade aluminum alloy, has a very solid construction. Adopting internal wiring high efficient booster circuit,can utilize batteries in the largest extent. Uses 3.7V Buttom Top 18650 Rechargeable Batteries. Additional aircraft-grade aluminum alloy tube, Support a 296mm long outdoor extended flashlight.