Aluminum;This powerful COB light is more than just illumination – it’s a multi-functional tool designed to tackle any situation; On/off button with four light modes: 100% long press, 60%, 30% and strobe light; Hands-free use with hinged stand, magnet or hung from carabiner; also features built-in bottle opener; Rechargeable 200mAh battery with up to 1 hour operating time; Input: 4.2V; Output: 3.7V; LED: 6W, 300lm; USB-A to type-C charging cable included; Packaged in white gift box with instructions and charging cable; Product size: 1.9″ w x 2.8″ l x 0.8″ d;