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basking with minimal heat???

geckoejon Mar 20, 2011 06:07 PM

hello, i'm looking to set up a beardy enclosure. i believe i am going with the compact 10.0 for uva & b, but am trying to decide on basking light.

here is my dilemma. i live in florida and it stays in the mid to upper 70's in the house. i am trying to find the best way to raise the temp in the basking spot 20-25 degrees but not have an over abundance of heat. all the basking lights i have been seeing are at least 50-60 watts. i'm afraid this might be too much heat especially when the enclosure is made of wood. i don't want to cook my soon to be newest addition. follow me?

is it possible to put a dimmer switch on a heat lamp?

any advice for basking ideas without having an over abundance of heat??? thanks...

jonathan

Replies (4)

robyn@ProExotics Mar 21, 2011 07:09 PM

If you use an elevated basking spot, you can pull 120F basking surface temps using a 25 watt lamp bulb very easily. We use Retes stacks that we make here at the shop, they provide not only a wide temp gradient, but additional hide spots as well.

This picture is a good visual, taken from a Uro setup. Basking temps on top of that stack are 150F , dropping about 10-15 degrees per level, and that is a 50 watt halogen bulb.

We have setup hundreds of 10 and 20 gallon glass tanks with Retes stacks for a super wide temp gradient in a super small environment.


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robyn@proexotics.com

ShipYourReptiles.com
Pro Exotics Reptiles

PHLdyPayne Mar 22, 2011 06:34 PM

With bearded dragons you want a basking area that at least provides temperatures ranging from 95-115F. Higher surface temperatures are alright to have as well, providing the basking spot is large, wide and angled to allow the dragon to choose what temperature it wants to bask on. The stacks Robyn suggests are good..but you can get similar results with a wide sloping basking area, or several basking areas.

Air temps in the hot end should be around 85-90F. The cool end air temperatures are fine to be in the mid 70's at night and mid to low 80's during the day, so your room temperatures are good to have as the cool end temps, providing the night time drops are not below 65F consistently (cooler short term night drops are fine).

The wattage of bulb you need will depend on how large your cage is and how high it is mounted from the basking area. If the bulb is internal (ie mounting inside the cage) you don't need as much wattage than if the light/heat source is mounted outside of the cage.

As you said your cage is wooden, I assume its something custom made. How much ventilation do you have? Is the top solid wood or partially/all screen? If the top is open or screened, you will loose most of your heat that way...Or if the lights are mounted outside...more heat will be lost. So you are likely going to need a higher wattage bulb than you would if you didn't have a screen top or mount the bulb outside.

You can get regular incandescent bulbs in anything between 25-150 watts which fit standard incandescent light sockets. (ie standard household light sockets).

You can setup the heat light using a dimmer switch or even a thermostat (proportionate type, that reduces power instead of an on/off one which turns off the heat source if it goes over a set temp. For dragons you don't want the lights going off and on all day) Though personally I don't think you really need to use a dimmer switch with a bearded dragon. Best to just use a fixed wattage. If temps in the house are hotter than 80F, then you can turn off the lights in the dragon's cage, or just use a lower wattage bulb in the summer.

I recommend you experiment with a few bulb wattages before you get your dragon till you find one that gets temperatures in the range indicated above. Aiming for 100F basking spot gives you more play to have different heights available on the basking area the dragon can chose from...Large wide pieces of driftwood or bricks/rocks stacked securely directly on the floor of the cage are good choices too. You want piles of rocks/wood etc to be secure and impossible to dig under to avoid injury to your dragon. If you are using sand as a substrate, pile it around the stones/rocks etc, don't place it ontop of the sand.
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PHLdyPayne

Forum Princess

geckoejon Mar 23, 2011 07:53 AM

robyn, thanks for the idea and pic. i will definitely keep that in mind i wonder how i could do that with a naturalistic looking setup and still have ease of cleaning?

phldypayne, thank you as well for your advice i do have a hand made cage. will enclose a pic. this one is 4'x2'x2' it is made out of melamine and has ventilation in the back pannels. don't mind the mess. lol i need to clean it out. i had snakes in it for years. i rehomed my snakes and am looking to set up possibly a beardie in the top level and either fatties, collards, or uros in the middle. another beardie for sure though. i like leaving the bottom level for storage. i also like to have my enclosures set up and running properly well before i start critter shopping. this isn't my first go around in the reptile world, but i am always seeking to learn and come up with better/easier/more efficient ways.

anyway, i will experiment with the lights. i would like to mount them inside for the reasons you mentioned of less heat required and ect... hoping it will be less heat expelled out of the cage as well...

thanks again...

jonathan

PHLdyPayne Mar 24, 2011 01:28 PM

Nice cages. Shouldn't be any p0roblem setting up lights inside those cages..and they certainly are tall enough not to be any risk of the dragon coming in contact with the hot bulb, as long as the basking site isn't too high.

A 75 watt bulb should be all you need...maybe less too... My cages had screen doors and were 5'x2'x2' and I typically used a 120watt for winter and a 100watt during summer... My apartment tended to be around 78-80F during the summer and closer to 73-75F during the winter but my dragon was on the lowest cage in a three cage stack..so he would often get cool air so I had a higher wattage bulb during the winter. Most times she brumated anyway...

Glad to hear you are doing all the right things before getting a dragon or other reptile.
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PHLdyPayne

Forum Princess

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