Topeak's brightest and most technically advanced rear safety light, the Topeak Redlight Mega is a serious lighting proposition. The RedLite Mega features 1 Piranha high-flux red LED and 4 additional super bright LEDs (2 red / 2 yellow) to provide an impressively bright and extremely visible signal to approaching motorists. 5 modes of operation alert drivers of your location on the road and maximizes your safety when cycling at night. Increase visibility and safety during your commute with the Topeak Redlight Mega. Features: Up to 100 hour burn time 5 different burn modes 1 high-flux Piranha red LED, 2 super bright red LED’s and 2 yellow LED’s Seatpost or Topeak Bags mounting options 1.5V AAA x 2 batteries (included)