4-Pin Base Compact Fluorescent Light Bulbs (CFLs) | LightBulbs.com
27 Watt Fluorescent Linear 4-Pin Quad GX10Q-4 Base Replacement Light B – MyGift
National Brand Alternative Part # KT-LED94P-H-840-S - 26,32, Or 42-Watt Equivalent T4 4-Pin Horizontal Cfl Replacement Light Bulb Cool White (1-Bulb) - Led Light Bulbs - Home Depot Pro
Push Fit (2 and 4-Pin) Light Bulbs | Lightbulbs Direct