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This should help you wire up your LEDs. Your 50,000 mcd LEDs probably have a narrow angle, maybe in the 20 degree range. Kind of directional, also at 12 volts, you'll be using around 350 ma, about the same as a 1 watt emitter, which usually have angle of 120 degree for similar brightness. Kind of depends on what sort of torch you want. Your LEDs will be more of a tight beam, like a spotlight, a single 1 watt emitter will be more like a lantern.