A large A-shaped general-service lamp used when higher light output is needed in a familiar bulb profile.
A identifies the familiar pear-like general-service envelope. The number 23 indicates a nominal maximum diameter of 23 eighths of an inch, approximately 2⅞ inches.
High-output general lighting, utility spaces, workshops, large pendants, post-top fixtures and commercial interiors with adequate lamp clearance.
A23 lamps are available primarily as high-output LED and legacy incandescent products, generally with medium screw bases.
Technologies represented in this library: LED, Incandescent.
Available base types: E26, E27.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| LED | 20–40 W | 2500–5000 lm | 2700K, 3000K, 4000K, 5000K, 6500K | 120V; 120–277V; 220–240V |
| INCANDESCENT | 150–200 W | 2500–3900 lm | Approximately 2700K | 120V; 220–240V |
These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.
Confirm the base and voltage, then measure fixture clearance and compare lumens, colour temperature, enclosure suitability and permitted operating position.
An A23 can share an E26 or E27 base with an A19 while being substantially larger and producing more heat or light.
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.
Confirm the base and voltage, then measure fixture clearance and compare lumens, colour temperature, enclosure suitability and permitted operating position.
An A23 can share an E26 or E27 base with an A19 while being substantially larger and producing more heat or light.
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.
