unior
Member
The recipe:
small electrical project enclosure - radio shack: $5-10
10 pack 380,000 mcd leds 15 degree angle - ebay $10 + ship
small circuit board - radio shack $5
3 10ohm resistors wired in parallel per led - radio shack: $cheap
1 3.6 volt 3 cell nickel metal hydride sub c pack - ebay or google rc packs$30
1 3.6 volt nickel metal hydride charger (charger voltage output is higher)
Heres a quick and dirty diagram. The squiggly lines are the 3 resistors wired together in parallel. Or substitute 1 33 ohm resistor.
Heres a pic. It's kinda ugly but very bright. It lights up the side of my neighbors house across the street at night. Total amperage draw is ~1 amp. So I get about 3 hours burn time off of 3300mah cells.
small electrical project enclosure - radio shack: $5-10
10 pack 380,000 mcd leds 15 degree angle - ebay $10 + ship
small circuit board - radio shack $5
3 10ohm resistors wired in parallel per led - radio shack: $cheap
1 3.6 volt 3 cell nickel metal hydride sub c pack - ebay or google rc packs$30
1 3.6 volt nickel metal hydride charger (charger voltage output is higher)
Heres a quick and dirty diagram. The squiggly lines are the 3 resistors wired together in parallel. Or substitute 1 33 ohm resistor.
Heres a pic. It's kinda ugly but very bright. It lights up the side of my neighbors house across the street at night. Total amperage draw is ~1 amp. So I get about 3 hours burn time off of 3300mah cells.