Again I am working on my dynamo powered LED-light.
I use this "voltage-doubler" circuit http://www.led-treiber.de/html/dynamo-treiber.html that uses just 2 diodes and 2 capacitors.
On Ebay I got 2 cheap (?) 5 W Luxeons as light sources.
The LEDs are of differend tint (thats ok, did not except to get X-binned for the price). One much on the white, the other one yellowish.
Now I tested the light on the fly and noticed something strange to me.
The white one immediately stops any glow after the dyno runs out, but the "yellow" one seems to glow quite some time, at least one minute, and more.
How comes this led glows this long? Would this mean this one might be more efficient than the other?
I use this "voltage-doubler" circuit http://www.led-treiber.de/html/dynamo-treiber.html that uses just 2 diodes and 2 capacitors.
On Ebay I got 2 cheap (?) 5 W Luxeons as light sources.
The LEDs are of differend tint (thats ok, did not except to get X-binned for the price). One much on the white, the other one yellowish.
Now I tested the light on the fly and noticed something strange to me.
The white one immediately stops any glow after the dyno runs out, but the "yellow" one seems to glow quite some time, at least one minute, and more.
How comes this led glows this long? Would this mean this one might be more efficient than the other?
