The seesense icon rear light is the smartest bike light on the market to date features all the intelligent sensing and crashtheft alerts as the icon but puts out 190 lumens instead of 250 this rear bike light is easily controlled using the free app or simple button controls on the light this is a feature packed light and thanks to the twin cree led39s that react to your environment you can stay daylight visible too see sense icon rear light features 2 x cree leds generati