Features: 1) Wattage: 25, 40, 60, 75, 100, 150, 200, 300, 500W 2) Voltage: 110, 220V 3) Base: B22, E27 iron, aluminum, brass, nickel 4) Life: 1000, 2000, 5000, 10000, 20000, 25000 hours 5) Color: clear, frosted, soft white, red, green, blue, yellow 6) Available shapes: A19, B19, T19 7) Packing: sleeve pack, box pack, shrink pack