Sunlite compact fluorescent plug-in lamps are used with external electronic ballasts. They are available in a wide range of sizes, wattages, color temperatures, and pin configurations. This Sunlite 18-watt compact fluorescent plug-in 4-pin light bulb offers 1080 lumens of light output and a color rendering index of 80. It has an average lamp life of 10000 hours. The 3000K color temperature produces a warm white light similar to standard incandescent bulbs. The PLD18/SP30K fits G24D-2 2-Pin socket.