The par20 spot hi spot 63 is a 63mm diameter mains voltage reflector spotlight with an es cap and can be used as a direct replacement for the incandescent r63 spotlights the par20 spot hi spot 63 with a 10deg beam is frequently used around the home for accent and task lighting as well as for display lighting in shops selling premium goods it produces a much whiter brighter light than the inefficient r63 and also has a longer life sylvania 21127