![GE (case of 30 Tubes) 66474 - F34/CX41/WM/ECO Straight T12 Fluorescent Tube Light Bulb, 4100K, 34 watt, 48 inches - Amazon.com GE (case of 30 Tubes) 66474 - F34/CX41/WM/ECO Straight T12 Fluorescent Tube Light Bulb, 4100K, 34 watt, 48 inches - Amazon.com](https://m.media-amazon.com/images/I/71inc3f-cyL._AC_UF894,1000_QL80_.jpg)
GE (case of 30 Tubes) 66474 - F34/CX41/WM/ECO Straight T12 Fluorescent Tube Light Bulb, 4100K, 34 watt, 48 inches - Amazon.com
![I have a flurocent light bulb F34 / T12. I found only F40 at the store. Can I use F40 instead of the F34? I have a flurocent light bulb F34 / T12. I found only F40 at the store. Can I use F40 instead of the F34?](https://www.justanswer.com/uploads/MI/MikeG2010/2012-6-7_192640_IMG01612.64x64.jpg)
I have a flurocent light bulb F34 / T12. I found only F40 at the store. Can I use F40 instead of the F34?
![GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com](https://m.media-amazon.com/images/I/41N6hekxkzL._AC_.jpg)
GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com
![General 24321 - F40/RED P.E.T. Coated Rough Service Safety Coated Linear Fluorescent Light Bulb - Walmart.com General 24321 - F40/RED P.E.T. Coated Rough Service Safety Coated Linear Fluorescent Light Bulb - Walmart.com](https://i5.walmartimages.com/seo/General-24321-F40-RED-P-E-T-Coated-Rough-Service-Safety-Coated-Linear-Fluorescent-Light-Bulb_53fc2245-25ff-4d38-a142-130ba38e3d5c_1.b29b67932f63d58fe624614a2953727c.jpeg)
General 24321 - F40/RED P.E.T. Coated Rough Service Safety Coated Linear Fluorescent Light Bulb - Walmart.com
![GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com](https://m.media-amazon.com/images/I/51135ftSLwL.jpg)
GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com
![Philips 40-Watt 4 ft. Linear T12 Type A ALTO Fluorescent Tube Light Bulb Bright White (3000K) (2-Pack) 543439 - The Home Depot Philips 40-Watt 4 ft. Linear T12 Type A ALTO Fluorescent Tube Light Bulb Bright White (3000K) (2-Pack) 543439 - The Home Depot](https://images.thdstatic.com/productImages/7a121cb3-b3d9-4dbf-9d37-e98a6b205ce2/svn/philips-fluorescent-tube-lights-543439-fa_600.jpg)
Philips 40-Watt 4 ft. Linear T12 Type A ALTO Fluorescent Tube Light Bulb Bright White (3000K) (2-Pack) 543439 - The Home Depot
![GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com](https://m.media-amazon.com/images/I/51135ftSLwL._AC_UF894,1000_QL80_.jpg)
GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com
![2 Pack) Sylvania 24588 - F34CWX/SS 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34/CW/RS/EW F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34CW/RS/WM/ECO F34/SP41/RS/WM/ECO F34/CWX/SS/UPC, Fluorescent & Neon Tubes - Amazon Canada 2 Pack) Sylvania 24588 - F34CWX/SS 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34/CW/RS/EW F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34CW/RS/WM/ECO F34/SP41/RS/WM/ECO F34/CWX/SS/UPC, Fluorescent & Neon Tubes - Amazon Canada](https://m.media-amazon.com/images/I/71cAhZapWfL.jpg)
2 Pack) Sylvania 24588 - F34CWX/SS 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34/CW/RS/EW F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34CW/RS/WM/ECO F34/SP41/RS/WM/ECO F34/CWX/SS/UPC, Fluorescent & Neon Tubes - Amazon Canada
![GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com](https://images-na.ssl-images-amazon.com/images/I/51135ftSLwL._AC_UL210_SR210,210_.jpg)
GE (case of 6) Lighting 66649 F34/CW/C/WM/ECO Fluorescent T12, 48 inches, 34 Watt, G13 Base, 4100K Cool White Linear Fluorescent T12 Bulb - Amazon.com
![F34CWX/SS (2 Pack) 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34CWX F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34SP41/RS/WM/ECO F34CW/RS/WM/ECO, Fluorescent & Neon Tubes - Amazon Canada F34CWX/SS (2 Pack) 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34CWX F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34SP41/RS/WM/ECO F34CW/RS/WM/ECO, Fluorescent & Neon Tubes - Amazon Canada](https://m.media-amazon.com/images/I/716SWC2YnjL._AC_UF894,1000_QL80_.jpg)
F34CWX/SS (2 Pack) 34 Watt T12 Fluorescent Tube Light Bulb F34T12 Replaces F34CWX F34CW/RS/EW/ALTO F34CW/SS/ECO F34/CX41/WM/ECO F34SP41/RS/WM/ECO F34CW/RS/WM/ECO, Fluorescent & Neon Tubes - Amazon Canada
![Philips 40-Watt 4 ft. Linear T12 ALTO Fluorescent Tube Light Bulb Bright White (3000K) (10-Pack) 543439 - The Home Depot Philips 40-Watt 4 ft. Linear T12 ALTO Fluorescent Tube Light Bulb Bright White (3000K) (10-Pack) 543439 - The Home Depot](https://images.thdstatic.com/productImages/76ee434f-c1f6-4ed8-99d9-12f160627372/svn/philips-fluorescent-tube-lights-543439-64_600.jpg)