Kryptonite Avenue R-45 bicycle rear light Make sure you are clearly visible with this bicycle rear light from Kryptonite. The memory function of the light turns on in the last mode in which it was turned off. With the built-in battery indicator you can see how much battery charge the light has. As soon as the charge is 25%, the indicator light turns red, as soon as the percentage is 100%, the light turns green. The built-in battery can be charged via a USB cable. You can mount the light in different ways on your bike or with the clip on your jacket, bag or backpack. Specifications: Colour: black Lamp colour: red Material: plastic Power supply: rechargeable battery (integrated) Battery life: up to 12 hours Dimensions: 7 x 2.5 x 2 cm (L x W x H) Weight: 130 grams High Flash: Lifespan: 1:30 hours Number of lumens: 45 lumens Low Steady: Lifespan: 2 hours Number of lumens: 20 lumens Day Time Pulse Lifespan: 3 hours Number of lumens: 45 lumens Night Time Pulse Lifespan: 5 hours Number of lumens: 5/15 lumens Economic Flash Lifespan: 1 hour Number of lumens: 25 lumens