Plug-In CFL Bulb Bulb Base Type 4-Pin (GX24q-4) Bulb Finish Frosted Trade Number PL-T 42W/841/A/4P 1CT/5X10BOX ALTO Bulb Shape PL-T Color Rendering Index 82 Color Temperature 4100K Incandescent Wattage Equivalency 150 W Lumens 3 050 lm Bulb Housing Glass Light Technology Fluorescent Shatter-Resistant No Voltage Ballast Dependent Watts 38 W Bulb Beam Angle 360 Degrees Three-Way No Rough Service No Dimmable Yes For Enclosed Fixtures No Bulb Power Source Plug and Play