A larger general-service format commonly selected when more light is required than an A19 provides.
The A21 has the same general pear-like profile as an A19 but measures a nominal 21 eighths of an inch—approximately 2⅝ inches—at its widest point.
Large table and floor lamps, utility areas, open pendants, high-output general lighting and spacious decorative fixtures.
A21 lamps are available in several technologies and output levels, usually with medium screw or bayonet bases.
Technologies represented in this library: LED, Incandescent, Halogen.
Available base types: E26, E27, B22.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| LED | 12–25 W | 1100–2600 lm | 2700K, 3000K, 4000K, 5000K, 6500K | 120V; 220–240V |
| INCANDESCENT | 100–150 W | 1600–2600 lm | Approximately 2700K | 120V; 220–240V |
| HALOGEN | 72–100 W | 1490–2200 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.
Measure fixture clearance before purchase and compare lumen output, voltage, base, operating position and enclosure rating.
An A21 may use the same base as an A19 but still be too wide or too long for the fixture.
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.
Measure fixture clearance before purchase and compare lumen output, voltage, base, operating position and enclosure rating.
An A21 may use the same base as an A19 but still be too wide or too long for the fixture.
These are common market ranges. Exact specifications vary by manufacturer and product
Send us a photo, the markings on your existing bulb, or your fixture details. Our team will help you identify a suitable replacement.
