I like to make things and I had an ambitious idea to make a small scale Griswold house and needed to wire together 100 1.5V 100mA (AC and DC compatible) pre-wired bulbs that are typically used for hobby train use. I am a complete newbie to anything that has to do with lights and wiring, but my husband had me solder them together in parallel and when I test them on a battery they light up. I bought a battery holder with switch that I was them going to solder to my lights. I did this and it does not work. I am hoping someone can help me to know what I did wrong and help me fix it.