R30 and BR30 bulbs are types of reflector bulbs commonly used in recessed lighting fixtures. Both have the same diameter of 3.75 inch ("30" indicating the diameter of the bulb in eighths of an inch). They are very similar, but there are slight differences in design and performance.

R30 Bulbs

  • R stands for Reflector.
  • Shape: These bulbs have a smooth, rounded shape and a reflective coating inside the bulb that directs light forward.
  • Light Beam: Produces a wide, soft beam of light with minimal shadows, ideal for ambient lighting.

BR30 Bulbs

  • BR stands for Bulged Reflector.
  • Shape: These bulbs have a bulged design, slightly wider than R30, which helps to provide better light diffusion and coverage.
  • Light Beam: Offers a wider and more uniform beam compared to R30, making them perfect for recessed or track lighting where even light distribution is desired.

Common Uses

  • Both R30 bulbs and BR30 bulbs are great for recessed cans and track lighting.
  • BR30 is more commonly used today due to its improved light spread and efficiency.