Big things come in small packages and that is no different with the blinder mini front bike light small but mighty. A front bike light that subtly straps onto any handlebar until it's turned on. Then it's anything but subtle. Features be seen from up to 300 metres away unrivalled led technology surface mounted leds output 50 lumens with a 20 degree beam so youll be seen from up to 300 metres away. They have a run time of up to 30 hours and come programmed with 8 light modes integrated usb rechargeable blinder mini's integrated usb connector plugs straight in to any available usb a socket to recharge. No external charge cables no worries. Just 3.5 hours to full charge charge indicators when blinder mini is running low on battery a red ring will light up around the button. This ring will turn green and then turn off once the light is fully charged and ready to go simple and smart mounting blinder mini comes with two silicone straps. A small strap for bars 22 ndash 32 mm diameter and a large strap that will fit tubes and head tube profiles with a circumference of up to 200 mm 7.9 in. Incredibly simple to take on and off specification bulb type chip on board cob leds light output max high flash 50 lm steady on 15 lm run time high 30 hrs low 1.8 hrs charge time 3.5 hours waterproof yes ip67 rating light modes 8 fits handle bars 22 32mm diameter plus head tubes to 7.9 inches rechargable yes integrated usb a connector dimensions h 40 mm x w 33 mm x l 31 mm weight 17 grams low battery indicator yes strap material medical grade silicone operating temperature 20 to 50 degc 4 to 122 degf optimum charging temperature 20 to 22 degc 68 to 72 degf room temperature.