1，Utilizes a premium CREE XM-L2 (T6) LED2，Powered by a single 18650 lithium-ion battery for up to 565 lumens of output3，High-efficiency circuit provides up to 400 hours of runtime4，A custom catoptrics-based system produces an extremely wide 100° beam angle5， Light housing provides 90° vertical movement to eliminate illumination dead-zones6， Direct access to red light mode with a runtime of up to 145 hours7，Innovative single button two-stage switch is remarkably user-friendly (patented)8，Ten rapidly switchable brightness modes to select from9，Integrated red/green power indicator light displays remaining battery power (patented)10，Power indicator secondary function displays battery voltage accurate to 0.1V