You can buy the waterblocks much cheaper
A square aluminium tube 8$/m ,
fittings, rubber, screws and other alu-profiles 22$
heatexchanger (min.80L), hose and pump ~220$
that`s a basic 250$ equipment for the cheapest, most efficient***** watercooled led system,
if then you spend 750$/1000W in drivers and chips - you receive a 1000W watercooled led system @ 1$ / W lamp power and...
- worldchampion in energy efficiency. (~85%)
using the produced heat in your household (hot service water/heating) can be a fantastic buisness if you are able to invert these basic 250$.
- and able to mount 30m² of PV panels or wind power to produce 5000KWh / year ---(~6000$)
- and able to use 100% of your self-produced renew. energy with an "electricity cloud tarif" of your local electr. company.
- My girl and me live in a 100m² appartment
- we need ~80l of hot service water per day
- i cover this with a 350W lamp during May-October
- during winter i run a total of 1050W of watercooled led light to produce additional room heating and grow tomatoes, lettuce.....specially when their prices rise in the supermarkets.
*************
So 2 persons on 100m² need 5000KWh to have additional electricity, hot water and heating,
weed and other crops.
Our savings every year (rising with prices for energy):
~850$ electricity bill
~ 1250$ for heating bill
~ ??? $ for 1kg weed + 8kg vegetables
---> ~ amortisation for pv panels&lamp system (7000$ self installed)) after ~3,5 years
then you start to do buisness for the next 15-20y ( ? let`s say 40.000$ ?)
the real difference between brown coal, oil and other stupid fossiles...
and smart, green electricity ...............
is not only a better buisness...by maintaining a green planet with ZERO-CO²
it`s also one of our last possibilities to maintain the whole creation .......as we know it.