iced_theater
Enlightened
I had bought a 1 watt spotlight from Wal-Mart, and just barely took it completely apart to see how hard it would be to modify it for a different LED. The light runs off of 4 AA batteries, 2 X 2, which if I understand right would be 3 volts going to the LED if no resistor were in place.
The LED that's in it is a RVOH which recommends a minimum vf of 3.03 and a max of 3.27 volts. That would run about perfect in direct drive with a pair of L91 AA's. But there is a resistor still on this light which is Gold, Gold, Violet, Yellow which comes to 4.7 ohms according to a site.
So how would you figure out the vf of the light with that resistor in place? And would I notice a big difference if I just take the resistor out and put a piece of wire in it's place?
The LED that's in it is a RVOH which recommends a minimum vf of 3.03 and a max of 3.27 volts. That would run about perfect in direct drive with a pair of L91 AA's. But there is a resistor still on this light which is Gold, Gold, Violet, Yellow which comes to 4.7 ohms according to a site.
So how would you figure out the vf of the light with that resistor in place? And would I notice a big difference if I just take the resistor out and put a piece of wire in it's place?