In the high-power mode the light duration is 8 hours, in the battery-saving low-power mode 16 hours. 4 batteries of type AA are included in the scope of delivery. The bracket can be mounted without tools and fits tube diameters from Ø 19 mm to Ø 31.8 mm. The front light CUPID 1W is approved in accordance with the German StVZO.Hi-Power LEDIn contrast to conventional bulbs, this LED light consumes considerably less power and its service life is significantly longer. The modern Hi-Power LED produces a particularly bright light cone. - Version: Front light - StVZO: with StVZO approval Mounting bracket - Mounting bracket: Front bracket: 19 - 31.8 mm - Mounting bracket included in delivery Power supply - Power source Details: Battery size individual: LR06 - Power source: Rechargeable battery - Batteries included in delivery Illuminant - Luminous intensity: 32 Lux - Length: 960 min - Illuminant: LED - Illuminant Details: Low- and Hi-Power Mode (8/16 hrs light duration)