A linear lamp bent into a U shape so a long light-producing tube can fit inside a shorter rectangular fixture.
U-bend lamps have two parallel tube legs joined by a curved section. Leg spacing, overall length, tube diameter, base arrangement and wattage are critical identifiers.
Recessed troffers, offices, schools, hospitals, government buildings and retrofit projects involving older fluorescent fixtures.
U-bend lamps are found primarily as T8 or T12 fluorescent products, with LED retrofit alternatives offered in ballast-compatible and ballast-bypass configurations.
Technologies represented in this library: Fluorescent, LED.
Available base types: G13, 2G13.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| FLUORESCENT | 22–40 W | 1800–3500 lm | 3000K, 3500K, 4100K, 5000K, 6500K | Ballast-operated |
| LED | 12–25 W | 1600–3500 lm | 3000K, 3500K, 4000K, 5000K, 6500K | 120–277V direct-wire or ballast-compatible, depending on product |
These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.
Measure overall length and leg spacing, identify tube diameter and pins, read the ballast label and determine the required LED wiring method if converting.
Different U-bend lamps can share wattage or tube diameter while using different leg spacing, pin positions or ballast requirements.
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 overall length and leg spacing, identify tube diameter and pins, read the ballast label and determine the required LED wiring method if converting.
Different U-bend lamps can share wattage or tube diameter while using different leg spacing, pin positions or ballast requirements.
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.
