Spiral Bulb Sunpark SU 18W =75WGU18 1215 lumens 41k CFL 2packs Color Cool White | eBay
Feit Electric 18-Watt Equivalent PL CFLNI Quad Tube 4-Pin G24Q-2 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (1-Bulb) BPPLD18E/41/HDRP - The Home Depot
LED PL Retrofit Lamp for 2 Pin CFL Bulbs - Replaces 18-26 Watt- G24D Base Lamps - Ballast Compatible, 4000K and 900 Lumens
Feit Electric 13-Watt Equivalent PL Quad Tube CFLNI 4-Pin Plugin G24Q-1 Base CFL Replacement LED Light Bulb, Cool White 4100K (1-Bulb) BPPLD13E841LEDG2HDRP - The Home Depot
GoodBulb 18 Watt CFL Light Bulbs | 2700K Warm White Light GU24 Base | 1100 Lumens 82 CRI 10000 Life Hours| EcoSmart Lights | Pack of 10 Bulbs - Amazon.com