The helix pro rear led is a versatile bike light designed to enhance your safety and visibility on the road. Whether commuting in the city or exploring further afield the helix pro ensures you stay seen and safe in all lighting conditions. Specification cob red led max. Lumens 150lm fl 1 tested max.runtime 80 hrs fl 1 tested max. Intelligent operation standby time 100 hrs battery type li po built in recharge time 230 hrs size w x d x h 22 x 19.5 x 66 mm weight 35g features 5 modes day flash steady flash flash 1 mode 1 mode 2 cnc aluminum heat sink casing intelligent operation 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