This product features a 10W Cree XML LED chip with a lighting output of 380 lumens. It is constructed from durable aluminum alloy and has a compact size of 38 x 132 mm. The flashlight is compatible with either three AAA dry batteries or a single 18650 rechargeable lithium-ion battery (not included). It operates at a working voltage of 3.7V or 4.5V, ensuring reliable performance for various lighting needs.