... , 22w/32w/40w G10q, CE,ROHS approved FC6T9 circline fluorescent lights are the round bulbs that are used in many ... PL type lamps, but many still use the FC6T9 circline fluorescent light bulbs that you see here.- 4 pin connection.- Round ... ballast.- Cool white, warm white or daylight color.- FC6T9 circline fluorescent light. 22w 32w 40w circular fluorescent