So there you have it your very own cool tube! and it cost me just under the $100 range,thats a savings of over $300 bucks or more,by the time everything is said and done.............

This Homemade cool tube is very effective! thats a 1000w HPS bulb burning inside that glass tube and we all know how hot a 1000watter can get before I hooked up this cool tube I had huge! heat! problems but once this system got up and running I was shocked on how well it worked! it is completely cool in the grow room now so cool infact,I might have to turn on the heater from time to time to take the chill out of the grow room it's almost to cool now lol...but thats a good complaint.............

It works so well infact I can touch the glass tube with my bare hand and leave it there probably for as long as I wanted too,there is absolutly no heat coming from the glass,infact I can even touch the actual 1000w bulb with my fingers without burning them before this cool tube though I would have burned my finger as soon as I touched the bulb! note: DON'T TOUCH BULBS! LOL I only did because I wanted to see how well the system worked......I must say I am completely happy with my results...............

I should also mention there are arguements out there that the glass tube takes away from the lumens that reach the plant,other words cool tubes can cut back the actual light out put of your lamp by 20%,note this is still debated by many,but I will add that the glass tube I used is just a glass cover for a candle probably a big roman candle and the glass is very thin perhaps a little thicker then a standard house hold bulb!..........don't know if the glass would be even thick enough to hold back any amount of lumens from the plants and if so I would say it would be alot less then 20% thats for sure.........................

Note in the pics I am actually holding the cool tube in my hands while the 1000w bulb has been on for more then 6 hours....and not even close to hot,maybe as warm as the top of your dryer after drying a load of cloth's.....