Cooling Tube?

[The Prof]

I just got new 1000w and was thinking about a cooling tube...DOes this affect yield/light to plant or does it work just the same as a bulb w/o the tube?? Thanks alot

 

[Lilstinky420]

Bulb without a tube is brighter, but you can get a tube closer to the plant without burning it with a tube so go figure hehe. What ever works better in ur scenerio i guess, but a 1000watt creates alot of heat, so might be better to go with something u can cool. The tube will also disperse a little bit of the heat into the glass around the bulb so less direct heat.