Be Seen In Traffic If you want one of the most versatile rear lights on the market then take a close look at the MOON CERBERUS 150lm Rear Light. It's capable of kicking out 150 lumens of super-bright red COB LED light and functioning with five lighting modes. Boasting 3-directional visibility and a Variable Lumen System it has got to be everything you could want for the price - and more.