cool tubee questions

[asbuddboy]

a few questions on cool tubes
first off this is the cooltube i am looking at buying: (sorry for posting a direct link if this is not allowed in this forum!!)

http://www.aussieponics.com/index.php?act=viewProd&productId=66&ccSID=1c710520380a7c82c6b3df6e6b493b9b

how many degrees c should my rrom drop changing from a non cool tubed 600 watt to a cool tubed 1000 watt?

does the cooltube fan blow on the light like a processor fan on a pc, or **** the hot air away from the light??

i'm a newbie to cool tunes and from what i have gleemed you connect an intake and outake duct is this true??

how many lumens are sacrificed though heat resistant glass panel??

please help it's soo damn hot in here atm!!!

 

[Hick]

.. In "most" cases, the fan is connected to the "output/exit". Intake should be connected to a cool, fresh air supply. The fan pulls the cool air across the bulb, cooling it and moving it out of the grow area.
"How much?".. will be relative to "how" cool your intake air is, "how" many cfm's are moving through the tube.