Light Source: XML LED Angle Of Light Beam: 7-37 degree adjustable beam. Light Output: 110 Lm (level I), 275 Lm (level II), 550 Lm (level III), 1200 Lm (level IV) Maximum Depth: 100 M tested. Casing Material: Aluminum alloy, anti-corrosive anodized Power Source: 18650 Li-ion rechargeable battery pack, Color Temperature: 6500K. Burn Time: 2 hrs (level IV), 5 hrs (level III), 10 hrs (level II), 20 hrs (level I) Safety Designs: Double O-ring sealed, safety valve. Switching System: Push-button with battery indicator. Front Glass: Tempered optical glass The CF1200P is a powerful light giving 1200 lumens and 4 power settings with an adjustable beam angle between 7° and 37°. This light has a push-button on/off function, a lithium ion rechargeable battery and charger, a battery level indicator on the light. This light is a great, versatile light option for any diver.