TESA SDL2T dive torch is installed with LED T6 chip, brightness is 1200 lumens. Run on 3XAAA batteries or 1X 18650 lithium battery (Battery is not included). It has a total of 8 mode- 4 modes of brightness, 4 modes of SOS mode. Set Contains: 1X TESA SDL2T Flashlight 1X AAA Battery Adaptor 1X 18650 Lithium Battery Sleeve 1X Lanyard Features: - The lens is made of glass and can withstand a depth of 30m under water. Made 100% water proof. - Improved LED driver. - No need to adjust before diving, it is design to even switch mode under water. Convenient for diver. Easy to use. - 1 Week Local (Singapore) Manufacturer Warranty.