Hello Electrical Experts! I used a 2A 1000V 2W10 Bridge Diode Rectifier input to an Adjustable Step-Up Switching Booter Converted Power Supply Module 2 -24v to 5v-28v 2A (picture below) to install a Massoth LED Spot Light powered at 22 volts into an LGB 2055 White Pass Alco Diesel.......worked great. Today I used another one of these devices to power a new 18v smoke unit I installed into an older LGB 2020 Stainz locomotive and set the output to 20 volts. I also used a second module to power the Stainz' 18v headlight and taillight. I soldered two sets of output wires to the Stainz motor block's track power output, one set to power the smoker, the set to power the lights. When I tested the Stainz on my DC roller wheels test track, it operates fine from 0 to 5 volts, then between 5 volts - 8 volts, the lights flicker badly and the smoker pulsates smoke. Over 8 volts, the problem stops and everything works fine.....motor, lights, smoker. Why do I get the flickering lights and smoking........what do I need to do to solve this operating issue.......add another electronic device? I tried to attach a short video of the Stainz operating with this condition but wasn't successful.