Front: Field of vision: 40 m. Visibility: 700 m. Luminous period: 15 h. 15 LUX. Operated by battery, rechargeables batteries. Battery level display. Tool-free battery exchange. Single snap closure. Including batteries: 2 x AA 1,5 V. Inclusive standard bracket ZL 500, ø 22 – 25 mm. Rear: Visibility: 120 m. Radiation angle of over 220°. 1x SAFETY LED's for more visibility. Tool-free battery exchange. Operated by battery, rechargeable batteries. Battery level display. Including batteries: 2 x N Size. Including bracket: ZL 320, ø 15 – 45 mm.