Discover the widest inventory of PAR36 sealed-beam bulbs available online to find exactly what you're looking for. The PAR designation means there are two pieces, the lens and reflector, which are welded together to create one bulb. The 36 represents the diameter, which in this case is 36/8 of an inch, or 4.5 inches. Search for halogen lights that range from 8 watts to 50 watts and last up to 5,000 hours. Additionally, PAR36 sealed-beam bulbs produce from 330 to 67,000 cp and up to 1,000 lumens. 1000Bulbs offers the largest selection, best prices and superior customer service among online lighting retailers.