LED Puck Light Highly polished 304 stainless steel, TIN (Titanium Nitrite) ... use in Boat, RV and Caravan as ceiling light, courtesy light other applications Clear PC lens, engineered lens optics ... provides a uniform and wide angle light beam illuminating from LEDs 4 LEDs of super bright 0.5W type ... up to 50,000hours Color Temperature: Warm White=4,000~4,500K, Cool White=7,000~8,000KCircuit board ...