Originally Posted by CrosseyedCrickt
I'm sure this one will get answered with a one word reply, search didn't show anything I could use without 4 hours of reading.
I have a rechargeable battery with 18.8v, can I use this for an Mr16 10w bulb to build a light? The light I have works fine with 10 AA rechargeable batteries, but only lasts an hour or so and I thought this bigger battery would last longer.
I don't know much about electrical theory, but am handy with some strippers and tape

im pretty sure that battery is too strong unless you use a voltage regulator. do a google search for lightbrain, and that should hwlp you out. before doing that though, you may want to make sure of how many amp hours that battery is. you may find that it doesnt store a whole lot and could end up giving you low run time.