I've got the 55 watt DDM 9006 4500K bulbs in my SLT... I thought they may be a bit on the bright side but no doubt are nice.. so far no melted parts and hopefully it will stay that way..
on another note and maybe this should be another thread something that I've noticed since installing my HID's and for all I know it could have been the same way with the original stock bulbs.. I start my truck in the garage, the headlights illuminate as the twilight sensor says it's dark... the nav system also says it's dark and is on night mode... so I drive out of the garage into the daylight and within a couple minutes the sensor says it's daytime and the nav display goes into day mode but the headlights stay on... sometimes if the sun is really bright the headlights will shut off as they should just leaving the DRL's or more often I just turn the headlight knob fully counter clockwise and shut them off myself and then they stay off until the next time the sensor says it's dark and turns the headlights back on... anybody else see the same thing?