OK to more directly answer the op's question and using what I consider premium parts and some improvements and some not so improvements over a Hydra 26.
This is going to be a bit shortened w/ note..
Drivers/Driver board/power supply(24V, 200W)/diodes/ and lenses...... $168
Improvements: No green but substitute cyan.
Deeper UV A but costly (adds $20/2 diodes)
Placement and density is my choice
Subtractions:Only 5 channels so "bridged" UV/violets and blue/cyan
Leaving $182 for the rest..
So the main parts left out is the heat sink and control..
Heat sink.. 6"x20" Black anodized w/ hanging kit.. $70
TC-421 (modified) for 5 ch 5v pwm WiFi /app $32
(Substitute windows tethered tc0420 $19)
$270............. w/ some compromises..like 8 bit dimming and crazy Chinese apps..
No time is not considered (I never bill myself for a hobby)
Nor thermal adhesives, wire, fitting, plugs though did throw one in the power supply for $4...
so lets say.. I saved $50..
Adding a 92mm fan and a voltage regulator (24-12V)
another $13..
So saved $37..
No, don't consider shipping .. kind of like a soldering gun.. just a must have ..
Savings point....
No expensive 365nM UV chips .. switch to 410 or so
Savings:$12.
Probably would go cheap on the regular blue
Savings: $10
Probably stick w/ TC-420 wired
Savings: $13
Total $72 less than a Hydra w/ "savings"..
Cost me that in man hours figuring all this out.. I'm worth it.. (just kidding)
numbers are as real as I can get..
diodes alone were $84.20.. Could be lowered to around $28 w/ little loss in quality..
so "Hydra-like" for $250
That was a lot of work.....
