T5 uv replacement

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T5 uv replacement

Postby DiXX » Thu Sep 19, 2019 12:49 am

Hi can anyone tell me when the T5 14% tube needs replacing please. Had ours 10 months but my daughters animal management tutor said 6 months.
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Re: T5 uv replacement

Postby KarrieRee » Thu Sep 19, 2019 4:34 am

T 5 its 1 year and T 8 ' are 6 months---
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Re: T5 uv replacement

Postby kingofnobbys » Thu Sep 19, 2019 5:31 am

Unless you have access to a Solarmeter 6.2 or 6.5 , and can test the output of your source can reset the basking spot to UV source distance to get a higher level of UV ( applying the inverse square law ) or by trial and error , T8 and compacts have a useful life of 6 months , most T5ho tubes have a useful life of 12 months (Arcadia Reptile GUARANTEE at least 1 year , https://www.arcadiareptile.com/d3-dragon-lamp/).

Inverse Square Law (very briefly)
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The math of the physics
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and
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If you know someone who has a Solarmeter 6.2 (UVB microW flux meter) and you can measure the UVB flux at the basking spot and it's over 60 microW / sq.cm , you still have some useful life in the tube if you can move the basking higher to get the new level of flux to about 180 microW / sq.cm then you can extend the life of the T5 tube several months.
This is my approach with my UVB globes and will work with T8 and T5ho tubes.

Alternatively if you know someone who has a Solarmeter 6.5 ( UV-Index meter ) , measure the currently UV-index and if it's under 3 , see above , adjust the basking spot height until the new UV-Index = 6.
CBDs: Cleopatra & Caesar born 28Jan19.
Puff (RIP 10Dec15),Rex (RIP 16Mar17),Toothless (RIP 26Nov17).Peppa (RIP 22Mar19).
EBTSs : George & Mildred (born july 2010).
EWSs : Fluffy rescued injured by lawnwacker14Nov17, Gutzy 27Sep19.
Lucky - cat attack rescue, SI RIP 21Jul2010.
Wriggles - injured rescued, boss lizard, over 8 yrs old, RIP 2Feb16. .
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Re: T5 uv replacement

Postby DiXX » Thu Sep 19, 2019 9:59 pm

Thank You guys, I have a new 1 on order, out of interest, if 1 failed or broke and didn't have spare how long is it ok to go without uv.?
DiXX
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Re: T5 uv replacement

Postby kingofnobbys » Thu Sep 19, 2019 11:15 pm

DiXX wrote:Thank You guys, I have a new 1 on order, out of interest, if 1 failed or broke and didn't have spare how long is it ok to go without uv.?


A week or two wont have much impact.

If it's going to take longer and it's warm and sunny , natural sunlight for an hour each day will do the trick , or if not sunny ( or too cold ie under 24 degC outside ) I'd be investing in a 26W UVB200 and either a reflector dome to danging under the lid or a 26W UVB200 and a Nano-hood (or equiv) to mount under the lid ( will need the basking spot about 6 to 8 inches from the 26W UVB200 to get sufficient UVA & UVB ) or a good Exo Terra or Zoo Med or Arcadia brand MVB (will need to mounted under the lid).
CBDs: Cleopatra & Caesar born 28Jan19.
Puff (RIP 10Dec15),Rex (RIP 16Mar17),Toothless (RIP 26Nov17).Peppa (RIP 22Mar19).
EBTSs : George & Mildred (born july 2010).
EWSs : Fluffy rescued injured by lawnwacker14Nov17, Gutzy 27Sep19.
Lucky - cat attack rescue, SI RIP 21Jul2010.
Wriggles - injured rescued, boss lizard, over 8 yrs old, RIP 2Feb16. .
kingofnobbys
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Posts: 10769
Joined: Tue May 12, 2015 10:56 pm

Re: T5 uv replacement

Postby DiXX » Fri Sep 20, 2019 1:12 am

That's quite a while. I will get 2 tubes so always got spare :)
DiXX
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