Need New UVB

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Need New UVB

Postby clyde612 » Sun Jun 20, 2021 5:14 pm

Hi there,

I've had my UVB for almost 5 months now so I'm going to buy a new bulb. I just wanted to run it by the forum and make sure this bulb is good/safe :)

https://www.amazon.com/Zoo-Med-26062-Re ... B00AQU8HKO

Thanks guys!
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Re: Need New UVB

Postby CooperDragon » Mon Jun 21, 2021 4:33 am

That's a good bulb. Do you already have a T5 bulb and fixture that size? If so, then you may not need to replace it yet. A good T5 should last at least a year before needing replacement.
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Re: Need New UVB

Postby clyde612 » Mon Jun 21, 2021 11:35 am

I have the bulb that same with (bulb was already in the fixture when I bought it at the store). The fixture says "USE ONLY 39 W T5 HO LAMP" and the actual bulb says "REPTISUN 5.0 UVB"

How long should I wait to replace it if I want to be on the safe side? I have always hear 6 months, and 5 to be safe... is that only for T8 or non-HO bulbs?
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Re: Need New UVB

Postby clyde612 » Wed Jun 23, 2021 2:58 pm

Are you sure it is safe to wait that long?
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Re: Need New UVB

Postby CooperDragon » Tue Jun 29, 2021 5:25 pm

Yeah the T5 bulbs should last at least a year. I measure mine with a Solarmeter and my Arcadia T5 is still going strong after 3+ years. The 6 month recommendation comes mostly from T8s and older bulbs. Best to replace it after a year or so if you aren't measuring the output just to be on the safe side, because they do decay over time. The 5.0 bulb has a lower output than the 10.0 / 12% bulbs so you'll want it at about the same distance as a T8 (6-8'' above the basking area). I would replace it with a 10.0 or 12% bulb if you need to mount it further than that. You can still use the existing T5 fixture for those bulbs.
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