Lezyne hecto drive 500xl femto usb light setthe perfect choice for guiding you through the darkest rides and murkiest weather conditions, the compact and convenient hecto drive 500xl and femto usb set from lezyne lights keep you well lit on every journey'. '.strtoupper('p')airing a front light with a huge 500 lumen output and a 180deg visible 5 lumen rear light, your riding vision and visibility will be clear to other road users'. '.strtoupper('h')oused in a durable aluminium casing with integrated cooling fins, the hecto drive light gives an impressive year round performance and the multi function femto usb has a long battery life.ruggedly built and long lasting front and rear bike lightsthe femto usb also gives a protective and long lasting lighting experience due wide angle optics lens inside its waterproof, co moulded casing'. '.strtoupper('e')ach light features a selection of modes to suit the conditions and weather on your ride'. '.strtoupper('b')oth come with a day flash mode for improved daylight visibility.making recharging the unit as easy as possible, the hecto drive light comes with an integrated usb stick to renew the battery power, while the femto usb light features a micro usb charging cable'. '.strtoupper('e')asily mounting to your bar and seatpost, this excellent light set is ideal for regular low light riders'. '.strtoupper('f')eatures material front machined aluminium body rear durable co moulded construction maximum output front 500 lumens rear 5 lumens light type single led lens wide angle optics lens provides well over 180° of visibility mounts included yes, both have a universal strap to suit all handlebar seatpost sizes battery life front 20 hours rear 15 hours battery rechargeable yes battery removable no recharge time front 2.5 hours rear 2.5 hours charging front integrated usb stick for cable free recharging rear micro usb cable charging cable included water resistant yes, ipx7 water resistance rating manufacturer's part number l 1 led 9p v1104 weight front 84g rear 23g runtimes front light hecto drive 500xl blast 500 lumens 1 hour enduro 200 lumens 2 hours economy 100 lumens 4 hours femto 15 lumens 20 hours day flash 500 lumens 5.45 hours flash one 50 lumens 13.30 hours flash two 50 lumens 13.30 hours pulse 50 lumens 15 hours rear light femto usb light flash one 5 lumens 15 hours flash two 5 lumens 15 hours flash three 5 lumens 15 hours pulse 5 lumens 9 hours solid 5 lumens 4.30 hoursbuy lezyne lights from chain reaction cycles, the world's largest online bike store.