does clear glass reflect or distort?

So if I have a glass lense in my reflector, am I just loosing some energy to reflection or is the actual light/color spectrum changed?

Can you see the sun come through your windows. Thousands of these glass covered lights are in use. Must be the benefits outweigh the loss?? VV

sun is also 864,938 mile wide, cosmically powered point light -

my question relates to using a hortilux blue bulb in an air-cooled reflector, indoors. The bulb is specifically made for proper red/blue/uv ratios but I don't want to be nullifying my investment by allowing the reflector glass to distort that spectrum. If it is just a matter of energy loss then I would simply add another light, but if I am ruining the spectrum then I need to look at a way to eliminate the glass

i think it just deplete the lumens just a tad bit

I have an idea. Try it with the glass on this grow and then take it off for the next grow. Compare the results and report back to us. Glass is a poor insulator because it doesn't reflect much back. Logic would tell you no one would use them if there was a problem. But that doesn't mean I don't like you.... yet. VV

I would think that clear glass made for grow lights reflects VERY little light and depletes your lumens REALLY minimally. Certainly can't outweigh the cooling attributes.

Cooler light means it can be closer to the plants. That to me would mean your light would be more efficient. You lose a lot more lumens by even having to raise your light by an inch or two. Lumen loss is exponential so being able to get that light as close as possible without the heat problem is much more efficient.

well spoken laserbrn

The glass doesn't block much light, as long as you keep it clean!

HTH

With what little you would lose from the glass you would make up for by the coolness and the ability to have the light a couple of inches closer