5 operating modes: Tricolor Masthead light (135° white 112,5° red 112,5° green 12hrs. burn time) Sternlight (135° 32hrs. burn time) Bicolor side light (112,5° red 112,5° green 20hrs. burn time) Red side light (112,5° 38hrs. burn time) Green side light (112,5° 38hrs. burn time). Dimensions: diameter68x35h-90mm (depending on model).