The topeak aura combo light set includes both whitelite and redlite aura lights in a great value combo the whitelite aura provides excellent visibility thanks to its three super bright leds and offers both constant and blinking settings the light is constructed from two lamps lamp one is a super bright 02 w led and lamp 2 is a super brigh white led it runs on two cr2032 lithim batteries included and has an approximate burn time of 60 or 100 hours depending on the setting used it weighs