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Old 19-07-2011, 03:40 PM
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Default Bearded Dragon UV Question

Hey there quick question regarding UV setup.
Ive just upgraded UV tube to an arcadia 12% T5 which runs length of tank and is situated on ceiling behind doors with arcadia reflector. (18" high viv). Reflecting towards back of viv.

Would it be a bad idea to leave my old tube (T8 12%) at the oposite side of ceiling being reflected in opposite direction.

Ive got both on at moment and its a lot brighter and i may be imagining it but he seems a lot more active.

Closest he can get to either tube is around 10"

Look forward to your replies
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Old 19-07-2011, 03:49 PM
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Umm I would say so long as the T8 tube was coming to the end of its useful life then its ok as it wont actually be giving much UV off, however if they are both new there may be too many UV rays vs visible light which may cause eye problems, best bloke to talk to is arcadiajohn on here
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Old 19-07-2011, 03:54 PM
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To be honest the T8 tube is weeks old, was worried he wasnt getting enough UV with it being 18 inches above him so purchased the T5.

Ah, ive seen a few of his posts, ill try and find one and send him a PM, thanks
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Old 19-07-2011, 04:17 PM
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Hello, there is no reason why you shouldn't use two lamps as long as you know the quality and age. I would place them side by side though so that the emission is coming from one angle. We need to try and replicate nature and there is only one sun.

I wouldn't be concerned about over provision. The sun in England in April at 2.00pm provides about 200mws. In Auz it is massively higher. At 15" with the reflector the T5s give about 100-130mws and the T8s about 30mws so there is still room for improvement. Next months PRK explains new lighting tech and is out end of next week I think.

You will notice that the T5s have a pronounced burning in period, I.E they will take one week to get to the full brightness, this is very noticeable, you will see the lamp get brighter every day for about a week when it will stabalise.

All questions welcome.

John.




Quote:
Originally Posted by Callum84 View Post
To be honest the T8 tube is weeks old, was worried he wasnt getting enough UV with it being 18 inches above him so purchased the T5.

Ah, ive seen a few of his posts, ill try and find one and send him a PM, thanks
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Old 19-07-2011, 04:19 PM
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If you have access to 2 separate timers for 2 separately powered uv lights you can have it so both are on in the middle of the day but have one of the two uvs switched off in the morning and evening. This would better replicate natural sun exposure as the power of the sun fluctuates through the day.
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Old 19-07-2011, 04:25 PM
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Thanks for the quick reply john, looking at the figures you just posted im astounded at the difference between the T5 and T8, makes me feel a whole lot better upgrading my 2 week old T8 setup.

I will do as you suggested and have both tubes emitting in same direction.

Thanks very much for your help!
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Old 19-07-2011, 04:28 PM
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Quote:
Originally Posted by reptolad View Post
If you have access to 2 separate timers for 2 separately powered uv lights you can have it so both are on in the middle of the day but have one of the two uvs switched off in the morning and evening. This would better replicate natural sun exposure as the power of the sun fluctuates through the day.
Thats a cracking idea.
Will keep this in mind, thanks
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Old 19-07-2011, 05:34 PM
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Quote:
Originally Posted by reptolad View Post
If you have access to 2 separate timers for 2 separately powered uv lights you can have it so both are on in the middle of the day but have one of the two uvs switched off in the morning and evening. This would better replicate natural sun exposure as the power of the sun fluctuates through the day.
Genius, i may even try this myself
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Old 19-07-2011, 07:25 PM
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Found a slight problem, running both lights brings the temp in the cool area up to around 87 to 89F and warm area to 97F to 99F. It's quite a warm day today so that's not helping.
I've always aimed for low 80s I'n cool area but are these temps ok for 3month old?
Thanks
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Old 26-07-2011, 03:22 PM
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Quote:
Originally Posted by Callum84 View Post
Found a slight problem, running both lights brings the temp in the cool area up to around 87 to 89F and warm area to 97F to 99F. It's quite a warm day today so that's not helping.
I've always aimed for low 80s I'n cool area but are these temps ok for 3month old?
Thanks
My temps are around that for my rankins dragon and it doesn't seem to bother him but then I do leave his viv open so he can run around when he likes in the afternoon. He's not much of a basker really. I sometimes leave the door ajar to cool the viv down when he's gaping.
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