FireCoral
Active Member
You can buy a cool tube and attach it to your bulb. I was wanting to get one now that I have an HPS, but coincidentally (when I was at the hydro store today), the guy that works there told me that they're not all they're cracked up to be because of the reflectors. The light that gets shone on the plants is very limited. And he said the vented hoods with the glass plate underneath the light are much better. I guess it's a matter of preference. And I know there are some DIY cool tube instructions on RIU somewhere. Maybe you could build one, eliminate the reflector and rely on mylar-lined walls to distribute the light.