Pumping out an attention-grabbing 300 lumens with OptiCube lens technology, the versatile ViZ300 stands out with the power of Daytime Hyperflash mode and the friendliness of Group Ride mode. Dimension: 25 x 75.5 x 34 mm Weight: 47g (with batteries) Light source Red LED X3 Battery Li-ion rechargeable battery Runtime Constant (30 lumens) 5hrs Flashing: (30 lumens) 45hrs Group Ride (15 lumens) 10hrs Daytime HyperFlash (300 lumens) 10hrs Recharge time 3hrs (0.5A) Mount size 21.5-32mm. Fits up to 130mm outer circumference. (SP-15) Water resistant: IPX4 Other: Battery auto save, Low battery indicator, Light mode memory
eBay