The Helix Max rear LED is a high-performance lighting solution for cyclists seeking superior visibility and safety when riding at night or in low-light conditions. Combining advanced technology with a wide range of modes and options, the Helix Max ensures a reliable and safe riding experience for all types of cycling. The Rigel Max front light can be helmet mounted using the supplied bracket or can be fitted to handlebars or a Go Pro style mount.SpecificationCOB red LEDMax. Lumens: 250LM (FL-1 tested)Max.Runtime:109 hrs (FL-1 tested)Max. Intelligent operation standby time: 140 hrsBattery Type : Li-PO built-inRecharge Time: 2:30 hrsSize ( W x D x H): 22 x 19.5 x 81 mmWeight: 40gKey Features5 modes: DAY FLASH / STEADY FLASH / FLASH 1 / MODE 1 / MODE 2CNC Aluminum heat sink casingIntelligent brightness functionIntelligent motion sensing functionIntelligent parking functionLock ModeAuto safe modeDay flash modeMode memory functionVariable Lumen SystemLow battery, charging and fully charged