A widely used tubular format with a nominal diameter of one inch.
T8 means a tubular lamp eight eighths of an inch—1 inch—in nominal diameter. Common bases include G13 bi-pin, FA8 single-pin and R17d recessed double-contact styles depending on length and system.
Offices, schools, supermarkets, warehouses, hospitals, workshops and parking structures.
T8 tubes exist as fluorescent lamps and as several electrically different LED retrofit types: ballast-compatible, single-ended bypass, double-ended bypass and external-driver.
Technologies represented in this library: LED, Fluorescent.
Available base types: G13, FA8, R17d.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| LED | 6–40 W | 700–5000 lm | 2700K, 3000K, 3500K, 4000K, 5000K, 6500K | 120V; 220–240V; 100–277V; ballast-dependent options |
| FLUORESCENT | 15–75 W | 800–6000 lm | 2700K, 3000K, 3500K, 4100K, 5000K, 6500K | Ballast-operated |
These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.
Match tube length and base, then identify the existing ballast and wiring method before choosing output, colour temperature and lens type.
Incorrect LED-tube wiring can create a shock or fire hazard. Ballast bypass and rewiring should be performed by a qualified person.
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.
Match tube length and base, then identify the existing ballast and wiring method before choosing output, colour temperature and lens type.
Incorrect LED-tube wiring can create a shock or fire hazard. Ballast bypass and rewiring should be performed by a qualified person.
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.
