Body:Aluminum with Type III Anodized O-Ring:NBR Lens:AR Coated Glass Clip:High Carbon Steel Contact Spring Retainer:Stainless Steel / Phosphore Bronze / Brass Nickel Plate Switch Type:Push Button Light Modes:High / Strobe / Medium / Low Battery Size:18650 Battery Type:Lithium-Ion Battery Quantity:1 Batteries Included:Yes Charge Time:5 hrs Battery Level Indicator:RGB LED Volts:3.7 V Lamp Type:LED Light Output:High: 944 Lumens Medium: 479 LumensLow: 37 Lumens Run Time:High: 3h 15mins Medium: 4h 30mins Low: 29h 0mins Beam Distance:High: 225m Medium: 157m Low: 44m Peak Beam Intensity:High: 12693cd Medium: 6172cd Low: 480cd Water Penetration Ratings:IPX8 (1m) Length:6.19' (157.23mm) Weight:With Batteries: 6.9 oz (195.61g) Without Batteries: 5.4 oz (153.09g) Battery Capacity:9.6Wh