The Dawg
Well-Known Member
Humm I Thought Robin Talked To God In Genesis 1:3
DIY Passive cooling with PIN Heatsinks SST120 and SST140
- Thread starter robincnn
- Start date
CobKits
Well-Known Member
i guess i dont get this there are tons and tons of options for mounting and optics of the 28mm chips. there are like 5 or 6 chip manufacturers in that size.
there are an equal number of drivers for 50V chips as 36V chips so no limitations there
pop22
Well-Known Member
I stand corrected! Guess its time for a better search, or do you have the parts I want? Saw the chips but not much options for it.. and the bjb holders are not high on my list either. I'm using them, they are what I have. Do you know of something specific that would be a better cob holder, more like the Ideal?
CobKits
Well-Known Member
there are ideals but i think we made a run on em or something 
i have 200 coming in later this month. if you are familiar with the ideals for crees they are the same, just a little smaller. also TONS of heatsink options for the 35mm spacing of the ideal and BJB. prob. the most universal spacing of all chips.
i personally like the BJBs but im a constant voltage guy. ideals are the next best bet. the 250V rating is great for our applications. there are all kinds of others like molex, bender+wirth, etc.
i dont wanna jump robins thread just wanted to correct that misconception. his 1812s are a great size chip and the heatsinks i sell are his...
i have 200 coming in later this month. if you are familiar with the ideals for crees they are the same, just a little smaller. also TONS of heatsink options for the 35mm spacing of the ideal and BJB. prob. the most universal spacing of all chips.
i personally like the BJBs but im a constant voltage guy. ideals are the next best bet. the 250V rating is great for our applications. there are all kinds of others like molex, bender+wirth, etc.
i dont wanna jump robins thread just wanted to correct that misconception. his 1812s are a great size chip and the heatsinks i sell are his...
pop22
Well-Known Member
Thank you, your advice and information is appreciated!
there are ideals but i think we made a run on em or something
i have 200 coming in later this month. if you are familiar with the ideals for crees they are the same, just a little smaller. also TONS of heatsink options for the 35mm spacing of the ideal and BJB. prob. the most universal spacing of all chips.
i personally like the BJBs but im a constant voltage guy. ideals are the next best bet. the 250V rating is great for our applications. there are all kinds of others like molex, bender+wirth, etc.
i dont wanna jump robins thread just wanted to correct that misconception. his 1812s are a great size chip and the heatsinks i sell are his...
robincnn
Well-Known Member
@ColaKoala13 you asked me what nutrients i use.
Well since I am growing tomato i don't wanna spend on mammoth P and stuff
I thought non organic once would have something bad. Turns out they just have salts.
I use Epson salt once in while too and it would be considered inorganic too.
I think ammonium based salts are causing rust in the metal 'water can' i use.
Well since I am growing tomato i don't wanna spend on mammoth P and stuff
I thought non organic once would have something bad. Turns out they just have salts.
I use Epson salt once in while too and it would be considered inorganic too.
I think ammonium based salts are causing rust in the metal 'water can' i use.
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Bubblin
Well-Known Member
Teflon plumbers tape on the threads of the general hydroponics is a life saver
Their screw on caps really suck.
robincnn
Well-Known Member
Thanks for the tip. Will try that to avoid spills and stainsTeflon plumbers tape on the threads of the general hydroponics is a life saver
robincnn
Well-Known Member
Their standard voltage is 80V
Dont you carry the "optional" 150v rated holder on your site? Was it more expensive to carry that than the standard 80v?
HV has 2 options. 150V and 450V
The HV holder for Cree 3590 is standard and available in 150V. It comes with wire rated 300V.
HV with 450VDC requires extra mica sheet for isolation so there will be a design fee.
pop22
Well-Known Member
robincnn
Well-Known Member
This one is Indeterminate.
Aruanda
Well-Known Member
I just used some Epsom salt (3tbsp) in my top dressing. It's naturally occurring so I guess it's possibly organic? Urine is also a great fertilizer (when diluted and from a healthy individual, with preference for one with an organic diet). It contains salts, I'd say it's also organic.
Epsom salt is used in that Subcool supersoil blend and I guess people are using it in what they call their "organic" grows. Not sure if how it's produced is organic or if it's harvested from somewhere though...
Aruanda
Well-Known Member
@robincnn Mammoth P looks like a great product. I'm sure it's expensive. But is it sustainable to be buying those bottles all the time? If I can't produce it locally, is it really worth it? It would be great if they open sourced how it's made if not requiring major lab equipment. There will always be people who will buy it out of convenience.
But I'm more concerned about those things I guess. Sphagnum is great, but not a renewable resource (at least in the rate people are using it). Coconut fiber is cool, but how far does it have to travel to get to you? Same with kelp. I like the idea of using appropriate inputs that can be locally sourced. To each their own I guess.
But I'm more concerned about those things I guess. Sphagnum is great, but not a renewable resource (at least in the rate people are using it). Coconut fiber is cool, but how far does it have to travel to get to you? Same with kelp. I like the idea of using appropriate inputs that can be locally sourced. To each their own I guess.
robincnn
Well-Known Member
@ColaKoala13
Got to have carbon atoms in molecule to be considered organic. Epson salt MgSO4 no C
Then I checked carbonates. Google said:
CaCO3 is definitely an inorganic compound. The broad definition of organic chemistry is that it is the chemistry of carbon containing substances. But an exception is always made in the definition: The carbonates, CO2 and metal cyanides are specifically excluded from organic chemistry.
Got to have carbon atoms in molecule to be considered organic. Epson salt MgSO4 no C
Then I checked carbonates. Google said:
CaCO3 is definitely an inorganic compound. The broad definition of organic chemistry is that it is the chemistry of carbon containing substances. But an exception is always made in the definition: The carbonates, CO2 and metal cyanides are specifically excluded from organic chemistry.
robincnn
Well-Known Member
Aruanda
Well-Known Member
Lol, maybe some people are taking this a bit too seriously/literalTurns out not even soil or sand is considered organic compound
