Our bike lights with a luminous intensity of up to 25 LUX ensure good visibility for night and twilight rides. Whether in the dark or on foggy school days - bike lights make your offspring on two wheels more visible to other road users. woom front and rear lights are approved in accordance with German StVZO and Austrian bicycle regulations and offer unrestricted function even in the rain thanks to the silicone housing. Tool-free attachment to any bicycle, the unmistakable battery status display and rechargeable batteries via USB cable make operation child's play. - splash-proof - tool-free attachment to all bicycles - Li-Po battery with 600 mAh (front) and 100 mAh (rear) - brightness (front): 15 or 25 Lux - light duration: 3 h (15 Lux) or 2 h (25 Lux) - rechargeable (via included USB cable) - approved according to German StVZO and Austrian bicycle regulations - weight: 90 g.