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just ask the girl in the video, if she like to popp with - or without water :wink:(: running a chip watercooled from the top "and" from the bottom must give a pretty good result of the total heat production of your chip. :fire: To subtract this heat amount from total inverted watts -...

This is a 80L heatexchanger. Together with a coolmac-300W watercooled led lamp cost you 700,-US$ incl. ship. + duty. :bigjoint: 15h/day :idea: generates me ~90L warm (86°F) water.

This way you have to add extra heat energy to your grow room - to stay in opt. conditions, because the colder water sucks air temp. down. - In summer under the roof maybe a good idea, but condensation will be an issue - tty says The other way round it`s easier. I measured in my grow room eg. ...

:peace: hi brother - as i run a watercooled 300W led lamp i can give you some data. 6 x 50W cheap chin. cob(bridgelux) @ 1,5A /33V The heat energy stored in water is easy to measure - and pretty exactly. I was able to store 160W in the cooling water. (54%) 12 x 50W chips @ 750mA(more light)...

I guess many growers have their grow room close to the place where they live. Many will take a hot shower from time to time:hump: My waterboiler(heat exchanger) still hangs close to my grow and the way to my bathroom is about 8m. I connected 2 garden hoses (cold/in + hot/out) to the boiler...

try it with heat resistant silikon - grinding the surface of water block and chip platine.

:leaf:-THANKS for the flowers - The wattage is limited at 1800W per lamp system in order to respect your fuse. (~230V) For shipping and packing it would be the best not to exceed 1,5m tubes. Just plan a raster for your chips and growroom (quantity of plants is important) and you can place the...

:peace: Maybe insulate carefully all contacts(lack, silikon) and just let it happen is the easy way. Waterproofed case to put drivers and contacts inside and sealed lenses to protect the phosphors is more professional. With condensation on the aluminium you will have more corrosion. I found a...

:eyesmoke: I think it`s clever, easy and cheap. :idea: Heat conductivity of aluminium is really good (235) - thermal grease much less (4-12) and the surprise water only (0,55). The difference is that heat transfer of an aluminium heatsink happens at the end of the fins or let`s say surface of...

:fire: Growing cannabis indoors uses a lot of power and if you want to keep track of it you can could log that on the Arduino too. ;) --- must be brainstorming to think to all controll posibilities of a grow. But what i need urgently is a waterproof temperature sensor and valves to process...

I mostly talk about watercooling, because I want people to use the heat energy created by led light. I don`t care so much whether it is 70% or 40% heat - generated inside a led chip. It is important for me, that i`m able to suck 60-70% of this heat energy at the backside of the led platine and...

If time tells you that time is over - what time do you need to terminate the " Terminator " ??? Lincoln, JFK, Trump - this would make America great again. Sorry this is a very bad, dark, sub-optimated vision - but I can`t help - so hungry to eat up his balls in mexican tequila and bunker his...

Apes without undertrousers - where does this pissed up donald come from ??? Here in the Black Forest EU we still work like bongsmilie or even :spew:to have liquid cooling. Can i see more of your personal cooling methods please ? Can you cool down my 50 W chip + driver @ 1,5A/45°C - to...

:peace:@wietefras Do you agree, that most of comercial led products still have processed low efficient (20-30%) leds ?

That`s what i mean - i simply separate light- from heat-production. Watercooling enables a pretty exat measuring of the transfered heat. I will measure top efficient leds and drivers for their heat output soon - then i`ll tell you. :mrgreen: keep your grow up vertical - cheers :eyesmoke:

:fire::bigjoint: Do you think driving Cree`s 328lm/W there is no heat production at all ?:bigjoint::fire: I also had been surprised by 70% light efficiency as mentioned by @ttystikk and i still think it`s around 15-35% in comercial products or diy led lamps. That`s why i said that a watercooled...

:mrgreen::hump: - I BUY

I tested ~6500K vs. ~1800K chinise 50W cobs under same conditions and i couldn`t see any significant difference caused by the spectrum. (6th week 18/6) The space 3x4 covered by 335W seperated in pink1800K and coldwhite6500K watercooled light bars. Cheapest watercooled solution is for shure...

Hi Ttystikk :bigjoint::bigjoint: - ok there is a lot of difference depending the chips quality`and also driving them. Records in efficiency are mostly made in manufactures laboratories and I guess it`s hard to measure and discus exact values because eg. light or photons are converted to heat...

Hi brother - since I bought a heatexchanger I will never pay for radiators and fans again. You just need a little waterpump(2,3W), hose + fitting and a closed watercircuit. You can find cheap combinations of heatexchanger and waterboilers on ebay...