A slim linear tube used in under-cabinet, display, task and compact architectural lighting systems.
T4 indicates a tubular lamp with a nominal diameter of four eighths of an inch, or one-half inch. Length and connector details remain essential identifiers.
Under-cabinet fittings, display shelves, workbench lights, mirrors, retail cases and compact linear fixtures.
T4 products include fluorescent systems and selected LED replacements, with lengths and electrical arrangements that may not be standardized across manufacturers.
Technologies represented in this library: Fluorescent, LED.
Available base types: G5.
| Technology | Common wattage range | Typical lumen range | Common colour temperatures | Common voltage options |
|---|---|---|---|---|
| FLUORESCENT | 6–30 W | 300–2500 lm | 2700K, 3000K, 3500K, 4000K, 6500K | Ballast-operated |
| LED | 3–18 W | 250–2200 lm | 2700K, 3000K, 4000K, 5000K, 6500K | 12V; 24V; 120V; 220–240V; product-specific |
These are representative market ranges, not guaranteed limits. Availability varies by manufacturer, voltage, base, beam, region and product generation.
Match the exact length, pin configuration, wattage, ballast or driver requirement and wiring method shown on the original lamp and fixture.
T4 tubes of similar length may use proprietary connections or different electrical systems. Physical fit alone does not confirm compatibility.
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 the exact length, pin configuration, wattage, ballast or driver requirement and wiring method shown on the original lamp and fixture.
T4 tubes of similar length may use proprietary connections or different electrical systems. Physical fit alone does not confirm compatibility.
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.
