A multi-function USB rechargeable clip-on light that grabs onto pockets or hats for hands-free use. No need to worry about finding a cord to charge it as it features a built-in USB charge tab. Features a white C4 LED and a 620-630nm red LED Multiple modes:C4 LED for white light: White C4 LED - High: 70 lumens; 500 candela; runs 3.5 hours White C4 LED - Low: 10 lumens; 50 candela; runs 24 hoursRed LED preserves night vision: Red LED - High:0 .5 lumens; 9 candela; runs 16 hours Red LED - Low: 0.2 lumens; 3 candela; runs 65 hoursFeatures: Lithium Polymer cell fully recharges in-product in 2.5 hours; rechargeable up to 300 times Charge indication LED: LED steady red - charging; LED blinking red - charged IPX4 water-resistant; 1 meter impact resistance tested Remove the tethered USB cover to expose the charge tab for charging via USB source or AC wall adapter. Polymer housing makes the light extremely durable abrasion resistant and light weight. Push button switch cycles through low high and off; turn light on then press and hold the button to change from white LED to red LED 3.2 in. (81 mm); 1.9 oz (53.8 grams) with battery Limited lifetime warranty