Aside from outstanding lumen capacity and industry-leading usage time, the Recon HL1100 monitors ambient light to change output accordingly, helping to save battery power for when you need it. Shine brighter, run longer and work smarter.FEATURESSmart Mode light sensor monitors ambient light to adjust light output accordinglyANSI certified lumens and run timeFocused optics with side light design for over 270-degrees of visibilityHeat-dissipating CNC-machined aluminium casingPower status indicator alerts remaining run-time before powering offIncludes adjustable GoPro mountRuntime: High (1100LM) 1.5hrs, Middle 3.5hrs (500LM), Low 7hrs (275LM), Smart (100LM>275 LM with flash output in Day) 36hrs; (500LM with steady output at Night) 3.5hrs, Flash (100 LM) 33hrs