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. Specification cob red led max. Lumens 250lm fl 1 tested max.runtime109 hrs fl 1 tested max. Intelligent operation standby time 140 hrs battery type li po built in recharge time 230 hrs size w x d x h 22 x 19.5 x 81 mm weight 40g features 5 modes day flash steady flash flash 1 mode 1 mode 2 cnc aluminum heat sink casing intelligent brightness function intelligent motion sensing function intelligent parking function lock mode auto safe mode day flash mode mode memory function variable lumen system low battery charging and fully charged indicator automatic fully charged cut off system side visibility water resistance ipx 7 rechargeable lithium polymer battery usb type c charging cable