28 Compact Fluorescent Lamps CFLs use far less energy. Have comparable brightness and color rendition compared to incandescent lamps. Can directly replace standard incandescent bulbs. Incandescent CFL 25 Watt = 5 Watt 50 Watt = 9 Watt 60 Watt = 15 Watt 75 Watt = 20 Watt 100 Watt = 25 Watt 120 Watt = 28 Watt 150 Watt = 39 Watt