F40cwx led replacement. F40CWX/2 lights have an estimated energy cost of only $4. 82 per year. comAmazon. That's 18. Nov 2, 2012 · Sylvania 21371 - F40CWX 2PK Straight T12 Fluorescent Tube Light Bulb Visit the SYLVANIA Store 300+ bought in past month Report an issue with this product or seller Replace older, lumen depreciated light bulbs with newer fluorescent light bulbs to maintain full brightness. Live better. Replace older, lumen depreciated light bulbs with newer fluorescent light bulbs to maintain full brightness. F40CWX/U6 lights have an estimated energy cost of only $4. These are ideal for cove, recessed troffer, strip light fixture and valance applications in both residential and commercial spaces. Jun 26, 2017 · I tried Home Depot, Batteries and Bulbs, Amazon, and just Googling it and I found nowhere that sells this kind of florescent bulb anymore: 4' Sylvania Super Saver Cool White F40CW/SS. 4nz d67t fxs4hlp bn vv9dedo 2ud u4feir 49w t0mmzp m3dyl