The moon lunar rear light is ideal for all types of cyclists the rear light makes you and your bike more aware to other road users or other fellow cyclists its 1 piece cob 15 chips high brightness red led gives you 15 lumens of light output which will make you easily seen the rear light has 4 different modes to choose from whether you prefer strobe or just the standard setting the light offers more visibility than other rear lights thanks to the side visibility view and i