Sorry so long :shocked:
The color of the lens in IR lamps will not effect the heat they give off so red or clear is still 175w only difference is color to the naked eye
Now when you know how many W you are using you can find out how much heat you are making as a
bi-product of the light
175w produces about 597 BTU
now bump up to 250w and you get about 853 BTU
a 60w bulb puts off about 204 BTU and a 100w bulb provides about 341 BTU (this is why a bare hanging bulb will keep a small green house from freezing or maybe an old tractor from being stubborn to start...old skool there)
why these numbers are important (this is not for flouresant, LED etc...just old fashion type bulbs)
if you take the W and divide by power source, 110v you get the amount of amps needed to power the light
60w ~ .55 amps
100w ~ .9 amps
175w ~ 1.6 amps
250w ~ 2.3 amps
This is important for your barn because you do not want to over load the wiring, which causes excess heat which will melt the plastic wire cover and...a possible fire
Let's say you need light in your new to you barn, you grab an extension cord and plug it into a 15 amp house receptacle to power the barn, and then you hook up 8 lights (big barn) and put 60w bulbs in, you now are creating 480w of heat and using 4.5 amps of power total you are good to go with most box store cheap extension cords 16/14 awg wire (always read label)
Conductor Ampacity
Conductor Size (AWG) Ampacity (Amps)
16 10
14 15
12 20
Now swap out those bulbs for bright 100w ones and then you are at 7.5 amps
I will not getting into wire run lengths vs voltage drop etc (info is out there via google)
Don't forget a heated water bucket is 1.5 amps or so
SO when you add in heat lamps and such you run out of power and you start to overload the 16 awg cord (this is why high W items like cook tops say do not use extension cords)
So with 8 light bulbs a couple heat lamps for chickens and other critters you are over loading and heating up the wiring in your barn, and then add into the equation older barns sometimes didnt have breakers/fuses for what ever reason and you have a very good chance to start a fire, and with no breaker/fuse a mouse can start a fire just as easily
also all the energy used on lights may mean no extra for a fridge, tv etc
This is why I moved to florescent (low power but stubborn to start in cold weather), then cam new ones with built in ballist even better, and now latest round is LED bulbs, love them even 60W LED have better light than an old 100w (took this last night)
1 LED bulb (60w compared) at top of door frame
SO NOW I am barely using 1/4W to light the barn and have a reserve for saws, grinders whatever
Here is Andrious and his brother Mordichia enjoying their light