Feature:
Precision Machined Aircraft Grade Crust Resistant Aluminum
Up to 40 Lumens (1W Luxeon)
Up to 70 Lumens (3W Luxeon)
20times(1Watt)/40times(3Watt) brighter than standard LEDs
Unit Size: 1982030MM (3W)
Battery Type: 2 1.5V AA Alkaline battery (1W)
Battery Type: 3 1.5V AA Alkaline battery (3W)