Electrical
Is 15v-2a safe even if it was to be touched while energized?
I know its current (amps) that do the damage, but you need voltage to get it through the skin.
I plan on getting this:
http://www.amazon.com/Tekpower-Variable-Supply-1-5-15-HY152A/dp/B000RO8J98
For projects (audio, motors, etc)...