Variable output dial adjust lights from 150 to almost 700 lumens Slim, double jointed light bar provides 360 degrees of light, rotates 270 degrees, and is great for confined areas Swivel hook and removable 360-degree swivel magnetic base for hands-free use Built-in 2200mAh rechargeable lithium-ion 18650 battery and charging cable Specifications: 690 lumens on high, 2.25 hour, run time (high), 5 hour run time (low); Charge time: ~2 hour, Input: 5V 1A, Battery: 3.7V DC, 2200mAh, USB cable length: 80cm; Dimensions: 15.75 x 1.5 in. (400 x 38mm), 6.6 oz. (187g)