851 Red 4 LED Emergency Strobe Light Head Waterproof Surface Mount Deck Dash Grille 1 x 851 LED Strobe Light, each light has four 1 watt Super Bright LED's Cycles through three different flash patterns. Long Life-Span, Water-proof! Durable Black Housing. Dimensions: Length 4.25", Height 1.25", Depth 1 Color: Red