Standard PAR Spotlights come in various sizes. The number after that PAR represents the diameter in 8ths of an inch as follows, PAR36 36/8th inch or 115mm, PAR38 38/8th inch or 120mm, PAR56 56/8th inch or 175mm, PAR30 30/8th inch or 95mm and PAR38 38/8th inch or 120mm. PAR38's also have a range of colours to suit your party, disco or seasonal needs. PAR reflectors are generally used for accent lighting. You can upgrade PAR38's to halogen by directly replacing them with a Halogen PAR38 Spotlight.
