Duster Headlights not working even with power?

I did take them apart and clean them. Also I did not run a jumper wire from dimmer to battery but rather I ran a jumper wire from that green wire that plugs into the dimmer to the back of the headlight and got nothing however i plugged it into where the black wire that plugs into the back of the ameter and the headlight lit up but I'm not sure if that tells me anything or not. Now should I have a light if I run a jumper from that green wire to the back of the headlight considering that the headlight is grounded? Or am I getting off track?
Thanks for your help. I may just take it to somebody if I still have no luck