The Planted Tank Forum - View Single Post - Determining forward voltage of LED's

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post #2 of (permalink) Old 02-14-2013, 02:21 PM
HD Blazingwolf
Planted Tank Guru
 
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Join Date: May 2011
Location: Chattanooga, TN
Posts: 4,907
im no led guru, but led's seem to be either
voltage limited
or amperage limited to control intensity
the key is finding which one

of course u can also find the circuit board. look up the resistor to figure out some voltage, ohm, wattage math and figure out what ur led's are using

if its a 3w led though, i wouldn't drive it much harder without adding heat dissipation or the wont last very long
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