R20

A small reflector lamp that produces a controlled pool of light for compact recessed and display fixtures.

Available Bulb Base

A small reflector lamp that produces a controlled pool of light for compact recessed and display fixtures.

How to identify R20

R means reflector. R20 has a nominal face diameter of 20 eighths of an inch, or 2½ inches.

Common applications

Small recessed cans, track lights, display cabinets, kitchens, restaurants and localized accent lighting.

Technologies and base options

R20 lamps are manufactured in LED, incandescent and halogen versions with different flood distributions, neck lengths and finishes.

Technologies represented in this library: LED, Incandescent, Halogen.

Available base types: E26, E27.

Typical market availability

Technology Common wattage range Typical lumen range Common colour temperatures Common voltage options
LED 4–8 W 300–650 lm 2200K, 2700K, 3000K, 4000K, 5000K 120V; 220–240V
INCANDESCENT 30–50 W 200–500 lm Approximately 2700K 120V; 220–240V
HALOGEN 35–50 W 300–550 lm Approximately 2800K–3000K 120V; 220–240V

These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.

How to select the correct lamp

Match base, voltage, face diameter and overall length, then compare lumens, beam spread, colour temperature and dimmer compatibility.

Compatibility and safety

R20 and PAR20 share a nominal diameter but do not provide identical beam control or environmental protection.

Important: The library describes a lamp format, not a particular product. A shared shape does not guarantee matching voltage, base, dimensions, light distribution or control-gear requirements. Confirm the fixture label and product datasheet, or ask a Bulb World lighting specialist.

Replacement Notes

Match base, voltage, face diameter and overall length, then compare lumens, beam spread, colour temperature and dimmer compatibility.

Capability Warning

R20 and PAR20 share a nominal diameter but do not provide identical beam control or environmental protection.

Common Market Options

led
Minimum Wattage: 4 watts
Maximum Wattage: 8 watts
Minimum Lumens: 300 Lumens
Maximum Lumens: 650 Lumens
Common Colour Temperatures 2200K, 2700K, 3000K, 4000K, 5000K
Common Voltage Options 120V; 220–240V
incandescent
Minimum Wattage: 30 watts
Maximum Wattage: 50 watts
Minimum Lumens: 200 Lumens
Maximum Lumens: 500 Lumens
Common Colour Temperatures Approximately 2700K
Common Voltage Options 120V; 220–240V
halogen
Minimum Wattage: 35 watts
Maximum Wattage: 50 watts
Minimum Lumens: 300 Lumens
Maximum Lumens: 550 Lumens
Common Colour Temperatures Approximately 2800K–3000K
Common Voltage Options 120V; 220–240V
led
Minimum Wattage: 4 watts
Maximum Wattage: 8 watts
Minimum Lumens: 300 Lumens
Maximum Lumens: 650 Lumens
Common Colour Temperatures 2200K, 2700K, 3000K, 4000K, 5000K
Common Voltage Options 120V; 220–240V
incandescent
Minimum Wattage: 30 watts
Maximum Wattage: 50 watts
Minimum Lumens: 200 Lumens
Maximum Lumens: 500 Lumens
Common Colour Temperatures Approximately 2700K
Common Voltage Options 120V; 220–240V
halogen
Minimum Wattage: 35 watts
Maximum Wattage: 50 watts
Minimum Lumens: 300 Lumens
Maximum Lumens: 550 Lumens
Common Colour Temperatures Approximately 2800K–3000K
Common Voltage Options 120V; 220–240V

These are common market ranges. Exact specifications vary by manufacturer and product

Need help finding the right R20?

Send us a photo, the markings on your existing bulb, or your fixture details. Our team will help you identify a suitable replacement.