![This is what happens when you put Fluorescent T8 bulbs in a fixture with a ballast for led T8's : r/electricians This is what happens when you put Fluorescent T8 bulbs in a fixture with a ballast for led T8's : r/electricians](https://i.redd.it/bzwncnd6ci251.jpg)
This is what happens when you put Fluorescent T8 bulbs in a fixture with a ballast for led T8's : r/electricians
![Feit Electric 18-Watt 4 ft. G13 Type AB T8 Plug and Play Or T8/T12 Ballast Bypass Linear LED Tube Light Bulb Selectable White (2-Pack) T4815/4CCT/AB/LED/2 - The Home Depot Feit Electric 18-Watt 4 ft. G13 Type AB T8 Plug and Play Or T8/T12 Ballast Bypass Linear LED Tube Light Bulb Selectable White (2-Pack) T4815/4CCT/AB/LED/2 - The Home Depot](https://images.thdstatic.com/productImages/b574d063-5fcc-4ea2-b2cc-ad9a71b0f759/svn/feit-electric-led-light-bulbs-t4815-4cct-ab-led-2-e1_600.jpg)
Feit Electric 18-Watt 4 ft. G13 Type AB T8 Plug and Play Or T8/T12 Ballast Bypass Linear LED Tube Light Bulb Selectable White (2-Pack) T4815/4CCT/AB/LED/2 - The Home Depot
![lighting - Can I upgrade existing T12 fluorescent fixtures to T8 just by replacing the ballast and bulbs? - Home Improvement Stack Exchange lighting - Can I upgrade existing T12 fluorescent fixtures to T8 just by replacing the ballast and bulbs? - Home Improvement Stack Exchange](https://i.stack.imgur.com/P8ktr.png)
lighting - Can I upgrade existing T12 fluorescent fixtures to T8 just by replacing the ballast and bulbs? - Home Improvement Stack Exchange
![Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot](https://images.thdstatic.com/productImages/549efa74-d2dc-4dc2-a8fd-90348e556e36/svn/feit-electric-led-light-bulbs-t4815-4cct-b-led-2-e1_600.jpg)
Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot
![Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot](https://images.thdstatic.com/productImages/5103a73a-cb4c-40cd-9017-a5065fe17a0a/svn/feit-electric-led-light-bulbs-t4815-4cct-b-led-2-64_600.jpg)
Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot
![HMINLED 25 Pack 4ft T8 Single-end Power LED Tube Bulbs Light, Type A, Milky Lens, 22W 6500K Daylight, Fluorescent Replacement T12 Ballast Bypass - Amazon.com HMINLED 25 Pack 4ft T8 Single-end Power LED Tube Bulbs Light, Type A, Milky Lens, 22W 6500K Daylight, Fluorescent Replacement T12 Ballast Bypass - Amazon.com](https://m.media-amazon.com/images/I/61t-VH+w2iL.jpg)