The Eveready 2D Compact Fluorescent Bulb are a Low Energy, High Light output bulb, ideal for use in many area"s such as in Security Lights, Warehouses, Storage Spaces, Garagesas well as many other areas where a bright light is required. This 2D bulb features a 2 pin design (also available in 4 pin - sold seperately) and produces 1050 lumens with a colour temperature of 3500 kelvins (white) all from a 16 watt bulb that is "A" rated in the Euorpean Energy Ratings. The Bulb Measures approx 15cm by 15cm