ttystikk
Well-Known Member
200W is not much heat. Water cooling it is like killing spidermites with a flamethrower. I'm water cooling 5400W, which is enough heat to cause serious problems in an enclosed space.@mahiluana thank you so much! Love to see data on this as I think about what I want in a light for my modest space. I would think a reservoir of water would store plenty of energy while radiating it to earth through the concrete in the basement. I'm curious what @ttystikk and others are seeing for dT's and flow rates in relation to light system power consumption. Im giving serious consideration to water cooled lights.
I have been researching lights and I'm thinking about 200 watts of softly driven cobs mounted in 2 rows serving a space that is -1.8 feet wide by 4 feet long long. Haven't decided which cobs to use. Efficiency is a primary design consideration of the light. I am thinking that the bar mount filled with water is the right setup for pump efficiency. Using larger conveyance piping also reduces pump power consumption. The hydronic system that heats my house uses a 9 watt pump to move 4,000 watts at 3 gpm, so it's clear that a very small amount of energy would be needed to move less than 200 watts of heat out of the grow space.
Thanks to all who have provided insight !
Not so long ago, 200W was just a couple of light bulbs.