*Precision Machined Aircraft Grade Crust Resistant Aluminum *Up to 35 Lumens (1W Luxeon) Up to 70 Lumens (3W Luxeon) *20times(1Watt)/40times(3Watt)/60times(5Watt) brighter than standard LEDs Unit Size: 32.5 x 122mm Unit Weight: 120g (incl.battery) Battery type: 2pcs 3V CR-123A Lithium battery