Topeak redlite mega rear lightour brightest and most technically advanced rear safety light the redlite mega features 1 piranha high flux red led and 4 additional super bright leds 2 red2 yellow to provide an impressively bright and extremely visible signal to approaching motorists5 modes of operation alert drivers of your location on the road and maximizes your safety when cycling at night featuresvisible up to 1 mile1 6km1 high flux piranha red led provides excellent visibility 280