CA0705A Spanninga set DOT XB The DOT XB lighting set is small in size but has a big impact. It offers the ideal lighting for your city bike. The lights both have an integrated silicone bracket. This fits perfectly on bicycle bars with a diameter of 19 to 32 millimeters. Both lights have a round, modern design and are very easy to attach using the attached strap. They both produce a bright beam of light with an output of 10 lumens. They both do this with the single LED on the inside of the lamp. Both lights have a diameter of 25 millimeters and weigh approximately 15 grams. The burning time of both lights is 20 to 30 hours. The lights work on CR2032 batteries, these are not included. Both lights can be set to constant light or to flashing light using the button on the top. Specifications Front light Colour: white, black Gender: unisex Material: plastic, silicone Type of lamp: LED Mounting: handlebar Light output: 10 lumens Maximum burn time (constant light): 20 hours Maximum burn time (flashing light): 140 hours Power supply: 2x 3V CR2032 batteries (not included) Weight: 15 grams Diameter: 25 mm Specifications rear light: Colour: red, black Gender: unisex Material: plastic, silicone Type of lamp: LED Mounting: seat post Light output: 10 lumens Maximum burn time (constant light): 30 hours Maximum burn time (flashing light): 200 hours Power supply: 1x 3V CR2032 batteries (not included) Weight: 15 grams Diameter: 25 mm Contents: 1 Front light 1 Rear light