You COULD use a number of 12v incandescent lamps in parallel as a limiting resistor.
That way you wouldn't be wasting the power - you'd be able to see what you're doing
Automotive headlamps might be the ticket for you - you wouldn't need anything fancy, and you could easily tell when they burned out.
You could pick up a bunch of them from a junkyard - complete with convenient wiring harnesses attached; just clip 'em off.
That way you wouldn't be wasting the power - you'd be able to see what you're doing
Automotive headlamps might be the ticket for you - you wouldn't need anything fancy, and you could easily tell when they burned out.
You could pick up a bunch of them from a junkyard - complete with convenient wiring harnesses attached; just clip 'em off.