OK, point taken about the 500ma power supply. >1. What number is on the transistor? This does >not sound like a darlington. I am at work, but does TIP120 sound right. It says darlington on the package. I got it from Radioshack. >2. You cant run 2x 12v 1A bulbs from a 9v 0.5A >wall wart supply. It will not supply enough amps. It is a stoplight configuration, so only ONE bulb is lit at a time loop: BSF RED BCF GREEN DELAY 2 seconds BCF RED BSF Green Delay 2 Seconds goto loop >3. Can you show the circuit? http://www4.tpg.com.au/users/talking/25mA.html It's the fourth circuit down, using the 12c508a The circuit does work if I put a 1.5k resistor for the second bulb. Bulb 1 blinks by itself for two seconds, then it goes into the loop of red then green then red then green ? I realize I should just get the proper 1A power supply! :) Thanks, Kevin -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body