did buy a nice old flashlight
surplus from swedish army, probebly made in 1986 ;-)
i have tryed it and it was, bad
not much light and bad light pattern
it has a 12v 120w sealed beam lamp
i will change this to a led lamp
i can probebly use the trottle to have control of the power to led
only ta have a schothy rectrifier and leds, if i have parallell led's a small balancing resistors and match the leds
an one or two heatsinks, so i can dissconect them from the generator and have them on a higher stand
but, whitch led should i have?
first flood light, whith no reflektors, if i need a beam i vill build anothet led head whit refloctors or lenses
i probebly want two heads, 2x50w
suggestions please
6,45kg empty
1 kg lamp
0.5 liter tank
idle 18v 140hz
halfspeed 33v 224hz
shortciruit current 12A @ 270hz
max powe 20,6v 8,92A = 183w
lamp 11.7v 10.43A = 120w @ 260hz
did try whit a reostat
low speed
16v 1A= 16w
13,7v 2.5A= 34w
12v 3,4A= 41w
medium speed
29,5v 1,77A= 52w
26,8v 3,0A= 80w
24v 4A =86w
21,8v 5,45A= 118w
18,4v 7,2A =132w
did have it on a bad scale @96w
0m 5.22kg
5m 5.19kg
10m 5.18kg
15m 5.15kg
= 0,28kg / hour
0,74kg liter
9.06kwh/liter
0,38liter / hour
=3,44kw/hour
0.096 / 3.44 = 2.8% from gas to electricity
surplus from swedish army, probebly made in 1986 ;-)
i have tryed it and it was, bad
not much light and bad light pattern
it has a 12v 120w sealed beam lamp
i will change this to a led lamp
i can probebly use the trottle to have control of the power to led
only ta have a schothy rectrifier and leds, if i have parallell led's a small balancing resistors and match the leds
an one or two heatsinks, so i can dissconect them from the generator and have them on a higher stand
but, whitch led should i have?
first flood light, whith no reflektors, if i need a beam i vill build anothet led head whit refloctors or lenses
i probebly want two heads, 2x50w
suggestions please
6,45kg empty
1 kg lamp
0.5 liter tank
idle 18v 140hz
halfspeed 33v 224hz
shortciruit current 12A @ 270hz
max powe 20,6v 8,92A = 183w
lamp 11.7v 10.43A = 120w @ 260hz
did try whit a reostat
low speed
16v 1A= 16w
13,7v 2.5A= 34w
12v 3,4A= 41w
medium speed
29,5v 1,77A= 52w
26,8v 3,0A= 80w
24v 4A =86w
21,8v 5,45A= 118w
18,4v 7,2A =132w
did have it on a bad scale @96w
0m 5.22kg
5m 5.19kg
10m 5.18kg
15m 5.15kg
= 0,28kg / hour
0,74kg liter
9.06kwh/liter
0,38liter / hour
=3,44kw/hour
0.096 / 3.44 = 2.8% from gas to electricity