2006 xc70. I put new LED bulbs in last year- everything was great till last nite. Driving home, I noticed the lights were dim...upon arriving home, the lights were no brighter than an old flashlight... Revving the car does not increase the brightness. What should I explore? What is the voltage that I should expect from the battery at its terminals? What is the voltage I should expect at the headlight sockets? I will try to look around for any 'loose' connections...Don't know what else to do? My local mechanic is off for 2 weeks, I'm afraid to drive too far from home. Alternator?
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