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T8 in a T12

Discussion in 'Habitat Lighting' started by SonnysDragonS, Apr 11, 2012.

  1. SonnysDragonS

    SonnysDragonS Elite Member

    Will a repti glo 10.0 UVB T8 bulb work in a 40 W T12 fluorescent light bar?
     
  2. SonnysDragonS

    SonnysDragonS Elite Member

    Nobody has any input?
     
  3. Rich

    Rich Administrator Staff Member Premium Member

    I honestly don't know the answer to this. If they are the same size I would assume yes, but I am speculating.
     
  4. SonnysDragonS

    SonnysDragonS Elite Member

    Yea this comes up because I'm getting ready to build some hatchling racks and I have 4 48" T12 fluorescent light bars already... The UVB lights are T8 though... And if I could just use those instead of having to but new ones... That would save like $80
     
  5. Infernalis

    Infernalis Elite Member

    They are the same length, 4 foot.

    However they are different wattage, with a newer "digital" (solid state AKA electronic) ballast, it would be OK, but an older rig with a starter and coil ballast it would shorten the life of the bulbs.

    Does your fixture have one of these??

    4D244_AS01.JPG
     

    Attached Files:

  6. mshrmheadcharge

    mshrmheadcharge Moderator Staff Member Premium Member

    I don't recommend this, they will fit (the pins are the same size) but you won't get as much output and you will end up buying new bulbs in a couple of months, if not sooner.
     
  7. kriminaal

    kriminaal HH Block Leader Staff Member Premium Member

    I agree, the ballasts are designed for a certain level of output. As well T8's have an electronic ballast.
    I wouldn't doubt if the bulbs flicker a lot.
    You could always change out the ballast.
     
  8. SonnysDragonS

    SonnysDragonS Elite Member

    A new ballast is more then a new fixture
     
  9. mshrmheadcharge

    mshrmheadcharge Moderator Staff Member Premium Member

    You should get a T8 fixture
     
  10. Vers

    Vers Elite Member

    You should do yourself one better and get a t5 fixture...preferably HO
     
  11. mshrmheadcharge

    mshrmheadcharge Moderator Staff Member Premium Member

    vers makes a good point
     
  12. SonnysDragonS

    SonnysDragonS Elite Member

    So a T5 will work with a T8 bulb??
     
  13. kriminaal

    kriminaal HH Block Leader Staff Member Premium Member

    They are nice, but pretty pricey from what I've seen. Are they not?
     
  14. mshrmheadcharge

    mshrmheadcharge Moderator Staff Member Premium Member

    No, the T8 bulb pins will not fit into the T5 fixture.
     
  15. SonnysDragonS

    SonnysDragonS Elite Member

    So then that's not a valid solution to this problem... Do they make T12 or T5 UVB bulbs?
     
  16. Vers

    Vers Elite Member

    Yes, actually Arcadia makes some really great 12% T5s, which you can find at lightyourreptiles.com. A lot of fixtures are pricey, but those listed on the linked site are not bad at all.
     
  17. kriminaal

    kriminaal HH Block Leader Staff Member Premium Member

    Yes those are quite cheap compared to anything I've seen.
     
  18. kriminaal

    kriminaal HH Block Leader Staff Member Premium Member

    Just an update.
    We had to replace some T12 fixtures in our shop. Talking with the electrician. To change a T12 to a T8, you have to change the ballast and the ends as well as they are different pin configurations.
     
  19. mld

    mld Subscribed User Premium Member

  20. kriminaal

    kriminaal HH Block Leader Staff Member Premium Member

    Interesting. Now would those have to be their own specific bulbs?
    Likely have unique ends on them?
     

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