Sunpentown FPL-27WIV Replacement 4-Tube Energy Efficient Bulb For use with SL-810, SL-820, SL-811, SL-821, SL-827N, SL-600 and SL-800 Lamps; 27 watt; Flicker free; Bulb made in Japan For use with SL-810, SL-820, SL-811, SL-821, SL-827N, SL-600 and SL-800 Lamps 27 watt Flicker free Bulb made in Japan