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Ushio G4T5 4W 6" UV Germicidal Lamp

Ushio G4T5 4W 6" UV Germicidal Lamp

$12.75
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SKU:
G4T5 (3000013)
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Quantity Option (Each):
1 Bulb
Product Description
Compact low-pressure mercury UV-C lamp (G4T5) for enclosed germicidal fixture applications.
 
Overview

The Ushio G4T5 is a compact 4W T5 germicidal UV lamp designed for fixtures that use a G5 (mini bi-pin) base and require a short, 6" class linear form factor. This is a UV-C lamp family commonly specified for enclosed systems in equipment, cabinets, and specialty devices where controlled UV exposure is required. Common identifier: Ushio 3000013.

Key Highlights
  • Lamp Type: UV-C germicidal (low-pressure mercury)
  • Wattage: 4W
  • Base: G5 (mini bi-pin)
  • Form Factor: T5 linear
  • Primary Emission: 253.7 nm (UV-C)
  • Ozone: Ozone-free / ozoneless (typical for 254 nm germicidal lamps)
  • Rated Life: ~6,000 hours (application dependent)
Typical Applications (Enclosed Systems)
  • Enclosed UV chambers in equipment and cabinets
  • Device-level air, surface, or water exposure systems designed for G4T5 lamps
  • OEM assemblies that specify G4T5 / 4W / G5 replacement format
Selection Tip (Avoid Mis-Matches)
“G4T5” is a format family used across manufacturers. For correct replacement, qualify by G4T5 plus base type (G5) and physical length class, then confirm your fixture’s electrical requirements (ballast/driver spec).
Safety Notice (UV-C + Mercury)
UV-C radiation is hazardous to eyes and skin (direct or reflected). Install and operate only in fixtures designed to prevent exposure (shielding, interlocks, or equivalent engineering controls). This lamp contains mercury; handle carefully, do not crush, and dispose/recycle per applicable regulations.
Industry Update (Ushio & ENI Continuity)
Ushio has an agreement to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing expected by the end of March 2026. During transitions like this, customers may see branding, labeling, or packaging changes even when underlying specifications remain consistent. SOSCleanroom will continue to support specialty lamps and can help validate continuity by part number and critical specs.
Need help selecting the right product?
Always confirm lamp format (G4T5), base (G5), physical length class, and your fixture/ballast electrical requirements prior to installation.
The Technical Vault
By SOSCleanroom
G4T5 • UV-C
Ushio G4T5 — 4W — T5 Linear — G5 Mini Bi-Pin — 253.7 nm UV-C
Common identifier: Ushio 3000013. Germicidal UV lamp format used in enclosed fixture designs.
Core Qualification Specifications (Format & Electrical)
Lamp formatG4T5 (T5 germicidal UV-C)
Wattage4W (nominal)
Voltage / Current~29–30V / ~0.16–0.17A (typical listings)
BaseG5 (mini bi-pin)
Overall length (class)~5.3" (134.5 mm) max overall length (pins included)
Diameter~0.61–0.63" (15.5–16 mm)
Primary emission253.7 nm (UV-C)
UV output~0.8 W UV (typical listing for G4T5 class)
Rated life~6,000 hours (fixture/ballast dependent)
OzoneOzone-free / ozoneless (254 nm class)
How It Works (Low-Pressure Mercury UV-C)

G4T5 lamps are typically low-pressure mercury-arc sources. When driven by the correct ballast/driver, the discharge emits strongly at 253.7 nm (UV-C), a wavelength widely used in engineered systems that rely on controlled UV exposure inside enclosures.

Because UV output depends on operating current, temperature, and ballast design, fixture engineering matters: airflow/temperature control, lamp aging, and enclosure reflectivity all influence delivered UV at the target surface.

Cross-Reference (Common Equivalents)
The G4T5 format is commonly cross-listed as G4T5, F4T5/GL, and TUV 4W T5 (catalog naming varies). For best match, validate: G5 base, overall length class, and the fixture’s specified ballast type (preheat/driver requirement).
Safety & Compliance Notes
UV-C exposure can cause serious eye and skin injury. Use only in fixtures that prevent direct/reflected exposure. Lamp contains mercury; follow spill handling and disposal/recycling requirements. Do not operate in open air applications unless the system is engineered with the required shielding and safety interlocks.
Industry Update (Ushio + ams OSRAM ENI)
Ushio has an agreement to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing expected by the end of March 2026. Branding or packaging updates may occur during transition while specifications remain consistent. SOSCleanroom continues to support specialty lamps and can assist with continuity validation by part number and critical specs.