Power Source: lithium ion
Modes: high, middle, low, steady, blinking
Lumens: [high] 500, [middle] 200, [low] 100, [steady, blinking] 50
Burn Time: [high] 1.3hr, [middle] 2hrs, [low] 6hrs, [steady] hrs, [blinking] 20hrs
Mount: handlebar
1.16 pounds