# BR30 Bulb

> A bulge reflector shape 3.75 inches in diameter, designed for recessed can fixtures. Produces a wide, even flood of light directed downward.

**Source:** <https://ledlightinginfo.com/glossary/br30-bulb>

BR30 bulbs are purpose-built for recessed can fixtures — the "BR" stands for bulge reflector, describing the bulged shape that directs light downward in a wide, even flood. At 3.75 inches in diameter, they're designed to fit standard 5-inch and 6-inch recessed cans.

The reflector coating on the inside of the bulb bounces light forward, which is why BR30s are more efficient than A19s in a recessed can — less light gets trapped above the fixture. A typical BR30 has a beam angle around 110°, creating a broad wash of light that's ideal for general room illumination from ceiling height.

When shopping for BR30 LEDs, you'll also see PAR30 as an alternative. PAR30s have a more controlled beam with a sharper edge — better for highlighting specific areas. BR30s produce a softer, more diffused spread. For most living rooms and bedrooms, BR30 is the better choice.

## Specifications
| Spec | Value |
| --- | --- |
| Shape | Bulged reflector |
| Diameter | 3.75 in (95mm) |
| Beam angle | ~110° flood |
| Fits | 5-6 inch recessed cans |

## Related Terms

- [Recessed Lighting](https://ledlightinginfo.com/glossary/recessed-lighting.md) — Light fixtures installed flush into the ceiling, creating a clean, unobtrusive look. Also called can lights or downlights. Available as integrated LED or with replaceable bulbs.
- [PAR38 Bulb](https://ledlightinginfo.com/glossary/par38-bulb.md) — A parabolic aluminized reflector bulb 4.75 inches in diameter. Produces a focused, controlled beam — commonly used for outdoor floods and track lighting.
- [Beam Angle](https://ledlightinginfo.com/glossary/beam-angle.md) — The angle at which light spreads from a bulb. Narrow angles (15-30°) create spotlights; wide angles (60-120°) create flood light.