The perfect choice for road cyclists who demand the very best in safety and performance. With long runtimes carefully considered beam angles powerful light output and multiple mounting options ndash the blinder 900 and blinder square combo will impress while greatly improving your confidence on the road. Blinder 900 front a powerful front light with multiple mounting options long lasting battery life and a compact and lightweight form. Produces a powerful 900 lumen road focused beam provides quality illumination up to 100m industry leading battery tech provides 2 hrs runtime on full brightness up to 120 hours runtime on eco flash mode includes two mounts a go pro style attachment for mounting under a computer and a tough rubber strap for the handlebar. Pre programmed with 6 light modes to suit all conditions usb c rechargeable cable not supplied 100% waterproof with an ip67 rating intelligent button leds show battery level and charge status side illumination windows for improved visibility blinder square rear blinder rear is one of knog's most individual rear bike lights ever adding serious personality to you ride. Be seen from up to 450 metres away usb rechargeable integrated usb a connector for cable free charging waterproof with ip67 rating up to 60 hr runtime 8 light mode settings light modes blinder 900 front bike light mode lumens runtime high steady 900 2 hrs medium steady 450 4 hrs low steady 200 8 hrs pulse 450 8 hrs strobe 200 16 hrs eco 130 120 hrs blinder square rear bike light mode runtime high steady 2.5 hrs low steady 6 hrs flash 4 hrs boring flash 5.5 hrs spinning flash 2 hrs speed up flash 13 hrs inside out 3 hrs eco 65 hrs technical specifications blinder 900 front bike light bulb type 4 x leds battery 5000 mah 21700 3.7v lithium ion rechargeable battery lens optics polycarbonate 2 x spot optics and 2 x wide angle optics beam angle 22deg max lumen output 900 lumens light modes 6 aero bar compatible yes low battery indicator yes battery charge indication yes yellow flash charging green short flash charge complete battery status indication green 100 50% yellow 50 25% red 25 10% red flash 10% fits bars 22 ndash 28 mm and 29 35 mm run time eco flash 120 hrs high steady 2 hrs charge time 5 hrs rechargeable yes via usb c connector weight 167 g 5.9 oz dimensions h 110 mm x w 27 mm x l 27 mm waterproof yes ip67 rating chassis cnc 6061 aluminium operating temp 20 to 50 degc 4 to 122 degf strap mount material medical grade silicone glass reinforced plastic optimum charging temp 20 to 22degc 68 to 72 degf room temperature blinder square rear bike light bulb type chip on board cob leds light output max 100 lm run time max steady 2.5 hrs eco flash 55 hrs charge time 4 hrs waterproof yes ip67 rating light modes 8 fits seat posts 22 ndash 32mm diameter rechargeable yes integrated usb a connector dimensions h 43 mm x w 43 mm x l 46 mm weight 34 gm 1.2 oz low battery indicator yes strap material medical grade silicone operating temp 4 to 122 degf optimum charging temp 68 to 72 degf room temperature