Uses T6 LED from the worlds famous CREE company. CREE 1800 lumens XML T6 LED Flashlight. This model uses super bright LED chips that are proudly made by US CREE, so you can use it without worrying about rain or rain. Because it is very bright, please do not direct vision or irradiation to people at close distance. This may cause temporary blindness. You can switch between 5 different lighting patterns. (High, MID, LOW, Flashing, SOS Pattern Flashing); Product Details: Flashlight; Size (Approx.): Total Length 0.5 - 0.6 inches (12.9 mm - 15 mm x 33 mm); Weight (Approx.): 3.0 oz (88 g); LED: CREE XM-L T6; Luminous Flux: 1,800 Lumens (maximum output); Waterproof function); LED Life: 3) (Batteries not included) Please be aware that there may be stains or scratches on the product.