HPS - Cool Tube question
- Thread starter matchgrip
- Start date
spliffendz
Well-Known Member
Which Reflector is Best for My MH/HPS Grow Light? | Grow Weed Easy
Learn about different types of reflectors for MH/HPS grow lights, and figure out which one will work best for your grow space.
www.growweedeasy.com
JimmiP
Well-Known Member
Those are hydrocrunch (or at least appear to be Hydrocrunch) cooltubes without the reflectors. You can get one brand new with everything (15 foot cord, socket and reflector) from Amazon for $31.03. Then throw the reflector to the floor, remove one of the eye bolts, drill a hole on the opposite end on the opposite side of the eye bolt you left in place. Reinstall the previously removed eye bolt and run it vertically.
You can then let your plants run up the walls on all sides of your light. Like this.
You can then let your plants run up the walls on all sides of your light. Like this.
Last edited:
Renfro
Well-Known Member
The downside to an external reflector on a cool tube is the light has to go through the glass, hit the reflector, then go back through the glass to get in the tube and again to get out of the tube headed towards the plant. Each passage through the glass is a loss. I have seen cool tubes with the internal reflector.
JoeBlow5823
Well-Known Member
Good point about the internal reflector i could see that making a huge difference.
Renfro
Well-Known Member
Back in the day a buddy gave me a new 1500 watt MH ballast kit and new lamp that was replacement gear for stadium lights lol. I hung that thing in one of those big parabolics that look like a big umbrella lol I had 3 plants in the old krusty buckets that it was sorta centered over and several vertical 400 watt hps lights around the sides because I had them. That was a pretty epic crop as I remember, the frost from that MH was thick.
matchgrip
Member
Thanks everyone for the replies! I decided to go with a prebuilt cooler with an internal reflector as suggested here.
Found a decent one second hand, with cables attached to the ballast and all that fuss hehe.
I have one more question if anyone reads it, so most of these cool tubes has either 125mm or at least 110+mm diameter(the one I bought also is around 10-12 mm bigger than 100mm) and my ventilator and my ducking have 100mm. Is there something I can buy, that make them fit together? Like a 110mm --> 100 mm redactor or something
Or should I just tape it from the inside and try to air tight it with tapes?
Found a decent one second hand, with cables attached to the ballast and all that fuss hehe.
I have one more question if anyone reads it, so most of these cool tubes has either 125mm or at least 110+mm diameter(the one I bought also is around 10-12 mm bigger than 100mm) and my ventilator and my ducking have 100mm. Is there something I can buy, that make them fit together? Like a 110mm --> 100 mm redactor or something
Or should I just tape it from the inside and try to air tight it with tapes?
jondamon
Well-Known Member
You’re looking for duct reducers you can get them to go from 150mm to 125mm or from 125mm to 100mm etc.Thanks everyone for the replies! I decided to go with a prebuilt cooler with an internal reflector as suggested here.
Found a decent one second hand, with cables attached to the ballast and all that fuss hehe.
I have one more question if anyone reads it, so most of these cool tubes has either 125mm or at least 110+mm diameter(the one I bought also is around 10-12 mm bigger than 100mm) and my ventilator and my ducking have 100mm. Is there something I can buy, that make them fit together? Like a 110mm --> 100 mm redactor or something
but what you’re after are an odd size so youd need to look for the ones that are correct sizing.
if it’s close go bigger and tape the outsides with aluminium foil tape for AC ducting.