A circular tubular lamp that distributes light broadly from compact round or shallow fixtures.
Circline lamps form a complete or near-complete ring. Diameter, tube diameter, wattage and connector type—including G10q and 2GX13—are key identifiers.
Round ceiling fixtures, decorative luminaires, magnifying lamps, hospitality interiors, corridors and compact commercial fittings.
Circline lamps exist as fluorescent systems and LED replacements in several ring diameters, tube sizes, wattages and ballast or wiring configurations.
Technologies represented in this library: LED, Fluorescent.
Available base types: G10q, 2GX13.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| LED | 8–25 W | 800–3000 lm | 3000K, 4000K, 5000K, 6500K | 120–277V or ballast-compatible, depending on product |
| FLUORESCENT | 22–55 W | 900–4000 lm | 2700K, 3000K, 3500K, 4100K, 6200K | Ballast-operated |
These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.
Measure the ring diameter and tube thickness, identify the connector and original wattage, then confirm ballast compatibility or rewiring requirements.
Two circular lamps can look alike while using different diameters, connectors or control gear. LED replacements may be ballast-specific.
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 the ring diameter and tube thickness, identify the connector and original wattage, then confirm ballast compatibility or rewiring requirements.
Two circular lamps can look alike while using different diameters, connectors or control gear. LED replacements may be ballast-specific.
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.
