LimoStudio 30 Watt Compact Fluorescent Photography Photo CFL Lighting Light Bulb 5400K, AGG1757 30W Full Spectrum CFL Continuous Light Spiral Bulb E26 Regular Screw Base 5400 Kelvin Temperature Overall Diameter: 3.5" | Overall Length: 5.75" Output Wattage Equivalent to 120 Watt Incandescent Light Bulb