Before you pick out your next PAR36 4.5" round sealed beam headlight housing replacements, make sure to browse our selection of available options and watch our review videos so you can pick out the ones that make the most sense for your project! Do you need HID or LED? Projector or reflector? Chrome or black? Between our review videos and customer support Headlight Revolution can halp you make the best decision on your next headlight upgrade decision!