Dunlop rear light UFO This rear light from Dunlop has six red LED lights and three different functions. You can have the light burn continuously or flash in two different modes. It is splash-proof and equipped with a handy mounting bracket. The lamp has an on/off button and works on two batteries (not included). Specifications: Color: white Material: plastic Lamp diameter: 6 cm Holder dimensions: 4.5 x 3 cm (L x W) Clamp diameter: 22.2 mm Works on two AAA batteries (not included)