what is par38 bulb
PAR 38 is a type of halogen or LED light bulb. There are two definitions for the acronym PAR, but both describe the same thing. One is parabolic aluminized reflector.The other is pressed-glass aluminized reflector. In PAR 38 lighting, both the lens and reflector are internal parts of the lamp.lso, PAR 38 bulbs can be purchased in WFL, which is a wide-flood beam spread. These are available in SP, or spot, and FL, or flood, as well. The two types of floodlights are the ones best for lighting a large area with one bulb. PAR 38 bulbs come in wattages from 53 watts to 250 watts.