I just found something

[michaelskunknasty]

On the box my 400w HPS light says that the glass cover disperses light better. I took it off originaly because I figured it would be better. Has any one else grown with a driveway style HPS flood light? The plants are doing fine I just wonder if I should have left the glass plate on? Does anyone have any input to this one? Thanks!

 

[bizzy323]

Keep the glass off, it works better.

 

[Hick]

'nasty, the glass might diffuse the light slightly, but consider replacing it and venting the light hood itself. With a well vented hood, you can really get it close with no heat issues.

 

[gcr6bk]

so should you keep glas on or off?
im confused.

 

[Hick]

no glass = no diffusing of the light
w/glass AND venting = much less heat
personal preference ?

 

[gcr6bk]

thank u hick.

 

[michaelskunknasty]

thanks guys thats what I thought. It doesnt take much to keep it cool. It goes from too hot to touch to almost cool with the fan on its lowest setting which helped this summer.

 

[gcr6bk]

good luck!