Gaius
Active Member
Easily build your own high-power LED Grow Light using COBs!
(Built with assistance of RIU contributors! - Original thread )
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Battlestar Ganjatica - A 480 Watt Multi-Mode LED Grow Light
6x CREE CXA3070 @ 3000K - $36ea ($216)
2x CREE CXA3070 @ 5000K - $38ea ($76)
8X Meanwell LPC-60-1400 Drivers - $20ea ($160)
8 Arctic Cool CPU Coolers - $9ea ($72)
Rhino 12v External HDD Power supply - $9 (for powering fans)
1 Tube Thermal Adhesive - $8
3'x1' White Shelving board - $10
4x Bottom Sliders for Drawers - $7ea ($2
(link is not exact model. I only paid $7 each in-store)
3x 2-way Switches - $4ea ($12)
4 heavy-duty stainless eye bolts - $1ea ($4) (in-store)
10 Pack In-sure easy wire connectors - $2
6-Pack Blue Mid-line connectors - $2
TOTAL PANEL BOM: $599
MISC Other Materials:
Misc materials:
Prolimatech PK3 or similar (eBay)
Kapton tape (eBay)
Zinc chain (Walmart or Amazon)
50V hookup wire for LED string 18ga (or use 600V wire from old xmas lights) (elecdirect)
600V wire for AC connections 18ga (elecdirect)
slide connectors .25" (bare, crimp on) (elecdirect.com)
heatshrink tubing .25" (elecdirect.com)
Solder 63/37 lead (amazon)
Solder flux gel syringe - MG chemicals ($10 eBay/Amazon) (this really helps)
tools needed:
cordless drill (harbor freight $15)
heavy duty crimper/cutter/stripper (walmart ebay amazon)
soldering iron (60w eBay $10)
recommended:
GFCI (eBay $7)
sand paper to lap heatsink surface (3M home depot)
Ignore the fan-speed controller. Didn't end up using it.
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Wiring is pretty basic. Just scale up the below diagram (provided by RIU member Goud)
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And here you go!
3 Modes: Veg, Teen, Bloom
Preliminary Results look good!
First day over plants:
Week or so later: