Clear-Lite 106907 OPTICOLOR ECO 9-Watt (40-Watt Equivalent) Natural Soft White and 20-Watt (75-Watt Equivalent) Natural Full Spectrum CFL Bulbs Opticolor Technology...The next generation of full spectrum Every Opticolor technology pack includes one 20-Watt full spectrum CFL bulb for reading and one 9-Watt soft white CFL bulb for relaxing? Turn both on together for a new full spectrum lighting experience! (For use in two-socket lamps only) Energy Star qualified Save up to 126.00-Dollar in energy costs per pack Long life bulb? Last up to 10,000 hours