I use Britelite sealed beams. They work very well. Most likely due to the 55w bulb and a much differently fluted lens than I've seen on any other sealed beam. Side lighting is excellent. Steve '84 5ksT 1.6-2.0 bar Disclaimer:"Any information contained herein is based purely on my own personal experience and may not necessarily reflect yours. Use caution as your results may vary from mine."