The Planted Tank Forum - View Single Post - DIY LED kit for a heavily planted 20L (solderless?)

WingoAgency · 05-22-2012, 06:58 PM

12 Cree 3W-4.5W LEDs with 40 degree optics are too strong for a 20L. Consider 60 degrees for the most part and use 90 degree lens for the 3rd and 5th column assuming you are spacing it like your diagram.

05-22-2012, 06:58 PM	#15
WingoAgency Planted Tank Obsessed (View User Tanks) PTrader: (5/100%) Join Date: Jan 2006 Location: New York USA Posts: 338	12 Cree 3W-4.5W LEDs with 40 degree optics are too strong for a 20L. Consider 60 degrees for the most part and use 90 degree lens for the 3rd and 5th column assuming you are spacing it like your diagram.