We recently purchased a new (to us) family car and I’ve been addressing some of the neglected maintenance items. The low beam headlights were extremely dim, yet the high beams were very bright. Incandescent bulbs become dimmer over time. I purchased some which were recommended by the forum for my specific vehicle for only $15 on the rain forest site. They are quite a bit brighter now and I feel much safer driving at night.
Learned this the hard way. I was visiting my parents years ago and my mom’s jetta had a headlight out. I offered to fix it and grabbed a bulb from the auto parts store down the street.
Two hours of searching online/youtube later the bulb was finally replaced.