T8 LED Tube Lights - 4 ft. -18 Watt - 36W Equivalent
18W Daylight LED Bulb - The Daylight Company
LED Equivalent Wattages Against Traditional Lighting – LED Hut
Satco S7224 18 Watt (75 Watt Equivalent) Warm White Mini Spiral Compact Fluorescent Light Bulb - 120V (
Satco S7225 18-Watt Medium Base T2 Mini Spiral, 4100K, 120V, Equivalent to 75-Watt Incandescent Lamp for Enclosed Fixtures - Incandescent Bulbs - Amazon.com
Feit Electric 18-Watt Equivalent PL CFLNI Quad Tube 4-Pin G24Q-2 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPLD18E/HDRP - The Home Depot
Utilitech 4-Pack 18-Watt (75 W Equivalent) Spiral Medium Base Daylight (5000K) CFL Bulbs ENERGY STAR at Lowes.com