On Wed, 24 Oct 2007 22:21:01 -0400, RBM wrote:


I agree. The higher end low voltage fixtures are made exactly the same as
the line voltage ones, with a different socket, and essentially are wired
the same except for the type of cable used. They don't use the stab type
connectors which oxidize in a short time. The 20 watt bi-pin type are fine,
but I find that the MR-16 sockets don't hold up in the hostile environment
of the Northeast

Amperage is what matters and low voltage lighting operates at far higher current
than high voltage lighting. The power dissipated by an inline resistance is
I^2*R; A 60W 120V system will draw 0.5 amps and a 1/2 ohm series resistance
will dump 1/8th of a watt. A 60W 12V system will draw 5 amps, and the same 1/2
ohm resistance will dump 12.5 watts and probably burn out in short order.