The TE-15's finally arrived and I did a test run and they worked. I hooked up 2 leds on series on the transformer. Then I noticed the dip switches and I played around with it a bit. seems like the dip switch with three up (black means up) is the brightest on all levels and when switched 3 down is the dimmest on all levels, which suits my needs more.
However, I wonder WHY it worked since the old (cheap) transformer that came with the leds were rated 18-23V, 240-280 mA, per led.
Does this mean I can actually hook up 3 led lights in series and put it in the dipswitches in the down up down