Four Tube 27 Watt 6400K 4-Pin Base Light Bulb<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>For use with 4-pin socket lamps.</li><li>Light output comparable to a 100 watt incandescent bulb. Not compatible with Verilux.</li><li>Uses 27 watts.</li><li>Energy efficient design.</li><li>Four-tube bi-pin base bulb.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/310Fjik4lhL.jpg" noproxy>