60W + 60W = 120W ?
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Douglas Arfempty

Original Poster:

624 posts

210 months

Monday 21st May 2012
quotequote all
Morning,

I'll be collecting my first Bearded Dragon this weekend, and am currently in the last few stages of preparation.

I have an Arcadia 140mm clamp lamp fitting (rated at 80W max), with a ZooMed 60W basking bulb.

I've monitored my temps over the last few days and it will not hit 110 on the basking spot.

Rather than get a larger fitting (200mm) and a 100W bulb, I was hoping to add another 140mm fitting with another 60W basking bulb (all controlled by a dimmable Habistat).

Can anyone please confirm if 60W + 60W will give me the equivalent of 120W at the basking spot, or, Is it only going to be slightly above 60W? (I'm thinking sound here, 40dB + 40dB does NOT = 80dB).


Google [bot]

6,828 posts

205 months

Monday 21st May 2012
quotequote all
I'm forgetting my equations, but I reckon it would. Forget the dB comparison, that's a logarithmic scale

Douglas Arfempty

Original Poster:

624 posts

210 months

Monday 21st May 2012
quotequote all
Cheers.

I understand that if i was in a room with a 1kW radiator, if i added another 1kW rad or replaced it with a 2kW would have the same (ish) result.

However, I didn't know if it was different with a bulb, and more specifically a basking bulb.

I need the intensity of the light and heat of 2x60W to be the equivalent of 120W on a specific spot you see.

C3BER

4,714 posts

247 months

Monday 21st May 2012
quotequote all
How far is the light from the rock? If your not careful your going to make it to hot.

Nightmare

5,279 posts

308 months

Monday 21st May 2012
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have had exactly the same process as you I owuld strongly advise sucking it up and buying the bigger fitting and getting a bigger bulb. how will you mount 2 60 watts near enough each other to get a decent 'constructive' effect? or you could try a 75watt, but i have ended up with 100 (and purchase an unnecessary number of inbetween bulbs of no use as a result!)

Douglas Arfempty

Original Poster:

624 posts

210 months

Monday 21st May 2012
quotequote all
C3BER said:
How far is the light from the rock? If your not careful your going to make it to hot.
Fear not, the temps are accurately monitored with an IR gun, and controlled via a dimming Habistat.

It's attaining the 110 I'm struggling with, not controlling it.

Douglas Arfempty

Original Poster:

624 posts

210 months

Monday 21st May 2012
quotequote all
Thanks for the replies.

I think I'll just swap the bulb for an Arcadia 75W halogen, which should give me a fair bit more heat, whilst also remaining safe for the 80W maximum rating of the clamp lamp.

R300will

3,799 posts

175 months

Monday 21st May 2012
quotequote all
Yeah 60W+60W would equal 120W providing they were shining at the same spot