Installed a pair of quartz halogen headlamps in my daughter's 31 Dodge Bros.

The new qh's were placed in the old original reflectors, that had the backs/rears cut off.

Original reflectors reinstalled and the original glass lenses put back on.

Seemed to work fine, until........ drove for an hour with the headlights on, they began to flicker, then went out.

Started trouble shooting from the +12v hitting the light switch and ended up at the 3 pin connector that goes onto the spades at the back of the qh headlamp.

The connectors had melted and caused the failure.

Question is: is the combination of the plastic lens on the front of the headlamp and the true glass lens generating that much heat ? I had thought of possibly removing the plastic lens from the qh headlamps, but was told that the qh bulbs would probably fail due to the non-perfect seal of the original glass lenses.

Are there any of you that can offer a fix/solution, before I have to re-invent the wheel.

Thanks