SHOP BY APPLICATION    SHOP BY APPLICATION   
SHOP BY PRODUCT TYPE    SHOP BY PRODUCT TYPE   
SHOP BY COLOR    SHOP BY COLOR   
RESOURCES    RESOURCES   
REACH OUT    REACH OUT   

How Can We Help?

                                                                                                                                                                                                                                                                                                                                                                
Your search results are loading...
No results match your query. Please try a different search.

Home /  Support Center /  Knowledge Base /  Ceiling Fixtures /  Do you have a 4-ft full spectrum bulb suitable for T12 fixtures?

Do you have a 4-ft full spectrum bulb suitable for T12 fixtures?


I have two 4-ft spectrum bulbs that are getting old they are fluorescent (TRU LIGHT ULTRA F40T 12TLU). I don't know if I need a fixture or not.

It appears that you currently have a T12 fluorescent lamp in a 4-ft T12 fixture. The good news is that our T8 lamps will fit in your existing fixtures, but the existing fluorescent ballast will need to be removed or bypassed.

​Once the ballast removal or bypass is complete, you will be able to use our T8 LED tube lights in the same fixture. 


Question posted under:

T8 LED tube lightsCeiling FixturesFluorescent replacements


Related Knowledge Base Questions


Do you have a 4-inch T12 LED Tube Light?

Recommended Fixture for CENTRIC DAYLIGHT Full Spectrum Flicker-Free T8 LED Tube Lights

8-ft T12 Fluorescent Replacement for Shop/Studio Lighting

Can T8 LED tube lights be used in T12 fixtures?

Do you have a high CRI T8 replacement in a 2-foot length?

‹   Knowledge Base Home