Union rear light EL2B This compact, high-quality rear light from Union works on two included AAA batteries. The high-tech LED lighting has a lifespan of 100,000 hours and is maintenance-free. It can be mounted on the rear mudguard. Hit the road well-lit with this rear light from Union. Specifications: Color: red Material: polycarbonate Dimensions: 7.5 x 3.5 x 4.5 cm (L x W x D) Lighting type: LED The rear light can be mounted on the rear mudguard. Contents: 1 Rear light 1 Mounting bolt 2 AAA batteries