Waveform Lighting Logo

How Can We Help?

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

Home /  Support Center /  Knowledge Base /  T8 LED tube lights /  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


Can T8 LED tube lights be used in T12 fixtures?

Does the T8 LED Grow Lights compatible with T12 fixtures?

Can I use 2 tubes in a 4-tube fixture?

What is the difference between a T8 fixture and a ballast?

Replacement for Daylight fluorescent bulbs

‹   Knowledge Base Home