I have a three year old bearded dragon who has been kept using an Exo Terra UVB150 26W since I got him as a baby with no other UVB source except when I took him outside like three times ever for five minutes each. Apparently these bulbs do not emit the right kind of wavelengths and can cause eye problems. But my beardie has been perfectly healthy with no obvious health issues. sometimes in the summer his eyes get a little watery, but that is it. I would think that has more to do with shedding or something though as it doesn't happen often. I am planning on getting a reptisun 10.0 UVB though anyway as they are supposed to be better. Is it normal that he has remained healthy this long with a coil bulb? Is there any internal things a should be worried about? Is there any behavior that should change if I get a new bulb?This would be the first --- what kind of coil is being used ? And I would take that question and ask on the board----------- all the people that I have spoke w / regarding coils have had repercussions and they werent good --- the brand and watt bulb--------------? Usually the health issues start by the time they are a year so I am shocked at this news--- and yes there could be damage that we cant see as well but please ask on the board and see what they say I am interested to know this too
Karrie
Thanks. That sounds about right to they way I had it set up except it was more in the middle of the enclosure and he basked on the side. Also you mentioned T8. Sometimes I see bulbs that say T8 HO or T5 HO, what does this mean?CooperDragon":134rhxb1 said:The 26w version of the UVB150 is similar in output to a T8 tube when using a reflector. The beam isn't as wide (depending on the length of the tube) but the output strength is very similar. If it was sitting about 6-8'' above the main basking area then it was likely providing adequate UVB. It's the lower wattage (13w) versions that cause concern since they aren't strong enough to provide adequate UVB at a safe distance.
Oh. I thought they just used inches for that.claudiusx":3fc5c9me said:Only the T5 bulb is the the HO version. The T8 bulb is the standard output.
T8 and T5 are sizes of the bulb, they represent what type of fixture the lamp needs.
-Brandon
Interesting. Kinda surprising too.AHBD":18vuzb8f said:Some people do use the coil bulbs with no ill effects to their dragons. A very long time + successful breeder [ over 25 years ] who retired recently was A-1 reptiles and they used the coils for their baby bins. They had beautiful , healthy dragons.
Thanks! That was very helpful. Your signature(I guess that what those are called) says Guac likes blueberries and supers. Those are Louie's favorite also :lol: .Ellentomologist":15a1u6qx said:Hiya,
I used coil bulbs for a very long time and still have them on my temporary setup back "home" (I only recently graduated college and regularly spend the weekend at my folks place. Usually Guacamole travels with me, to a setup identical to his regular one except with a coil instead of tube UVB). My personal opinion is that they are unfairly vilified, but not ideal... A lot of aspects of animal care are.
Coil UVB bulbs themselves are not the devil. What really gets people in trouble is when they have multiple things sub-par - for instance if they have poor UVB, loose substrate, and are feeding too many insects or sub-optimal feeders. If your care is otherwise perfect, a "good" coil bulb - as Cooper Dragon mentioned - will probably suit your needs just fine. However, you will always make sure to keep an extra vigilant eye on your animal's health behavior because of the possibly-risky bulb, and any health problem you do run into you will have to consider being the fault of the bulb.
Ultimately, when you compare the costs and possible risks, it doesn't make sense not to get a appropriate tube bulb instead of a coil. They last longer, and the prices of a "good" coil or vapor bulb compares to a "good" tube are very similar. Tube bulb mounts are considerably more expensive, though, $40-60 as opposed to $13-25, at least where I live. When people say they have a coil bulb, I do strongly advise them to make the switch, but if they just bought a new coil bulb they might as well get their 4-6 months out of it and use that time to save up for proper UVB.
The exception to this, obviously, is if they have a sickly or rescued dragon. A sick animal can, potentially, be caused by sub-optimal UVB, or otherwise you don't want risk further complications with a sick animal by using sub-optimal UVB.
Does that make sense?
Hope this helps,
-Ellen
P.S.
Since Brandon was interested:
I kept Guacamole, my male Normal Morph under a coil UVB for the first 2 years-ish of his life. From the get go, he got salads daily in the morning that he largely ignored until he was with me for 4 months or so. As a youngling, he got insects 2-3 times daily, then once daily for longer than he should've... I only recently swapped to 2-3 times a week for insects. I do a 3:4:3 mix of all Rep-Cal supplements in the following order, Calcium W/ D3: Multivitamin : Calcium W/O D3 on all feeders and 1-2 salads a week. Coil was about 10-12 inches from the basking spot, above a wide (quarter inch) mesh. Temps were about 78-84 F ambient, 95-100 basking. I haven't noticed any major changes in Guac's behavior since swapping his lighting, except for the fact that he now hangs out further away from his basking spot (where there is UVB but little heat) than before, when his UVB and heat were localized to the same area.
LouieLizard":3twb3mvu said:Oh. I thought they just used inches for that.claudiusx":3twb3mvu said:Only the T5 bulb is the the HO version. The T8 bulb is the standard output.
T8 and T5 are sizes of the bulb, they represent what type of fixture the lamp needs.
-Brandon
His bulb was in the center of his enclosure and his basking spot was on the side.claudiusx":5rbcbpdo said:How close is the coil to the basking area?
The eye issues are largely non existent anymore. There was a manufacturing problem in the beginning that caused lots of issues. However they do put off very glaring light which can be strenuous to their eyes. But it usually doesnt cause the problems we saw in the past.
Since this is such an interesting discussion, can you give us some details about your dragon and setup?
Is he a normal or a morph?
What's his daily diet look like? What was it like when he was growing?
Supplements and their schedule?
Distance the coil is from the basking area?
And lastly, temperature?
I'm prodding here seeing if some more info can cause some deeper thinking here
-Brandon
Ok, thanks!kingofnobbys":1nzgl65h said:LouieLizard":1nzgl65h said:Oh. I thought they just used inches for that.claudiusx":1nzgl65h said:Only the T5 bulb is the the HO version. The T8 bulb is the standard output.
T8 and T5 are sizes of the bulb, they represent what type of fixture the lamp needs.
-Brandon
T8 means diameter is 1", T5 means diameter is 5/8".
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