Quote Originally Posted by karmaxul
75% of the electricity you use is to get her up to temp to make light. I dont cool bulbs as it is extremly inefficient. I would recommend sealing the shade with duct tape and put a ac in the window. If you put a ac in the window take it apart first and put weatherstriping in the middle under the lid to seal off any air escaping.

One love
c
I do not agree with you here.

Most of the power consumed is by the transformer not the bulb. The gas inside the bulb get's hot to produce the light but no where close to the 75% you are saying. Heat is a by product of the gas producing the lumens. (light)

Most of the energy is spent transforming the power from 120v input to the 240-277v AC output the light requires to burn. That is where most of the true heat and the power come from.

There is nothing wrong with cooling the bulbs in an air-cooled hood. I have used them for many many years with great success. The amount of light the bulb produces is not affected once if the bulb is cool or not. The glass does take away a few lumens but nothing you or your plants would notice. The savings in heat is well worth the very little light given up by the glass.

I have measured it many times with my light power meter and have found less then 1% decrees in the lumens with cool tubes or air-cooled hoods.

A cool room is way better then a hot room any day!!!!!!
Zandor Reviewed by Zandor on . making a cool tube does anyone know anyway to mke a cool tube or any other way to cool a 600watt hps i have exuast fan on the hood and a oscilating fan blowing on it but my temp is going out the window , thanks Rating: 5