High-Efficiency T5 Fluorescent Replacement Lamp with Frosted Shatterproof Glass Lens, Universal Voltage, and 5-Year Warranty

The GL SERIES T5L-ISFH14-3500-4FT is a high-performance 4-foot, 25W LED T5 Type-B tube engineered for energy-efficient replacement of traditional F54 HO T5 fluorescent lamps. Delivering a powerful 3550 lumens at 140 lm/W efficacy, this lamp is optimized for commercial and industrial lighting applications.

Built for long-term reliability, the tube features a durable internal LED driver, G5 end-caps, and Double-Ended Power installation for simplified retrofit without a ballast. Its anti-UV frosted shatterproof glass lens ensures even, glare-free illumination and prevents discoloration over time.

Rated for universal voltage (120-277V) operation and compatible with ON/OFF occupancy sensors, this LED T5 tube operates in a wide temperature range of -4°F to 113°F. Backed by a 5-year / 50,000-hour warranty, and compliant with UL, FCC, CE, and RoHS for safety and rebate qualification.

Specifications:

Electrical:

• Input Voltage: 120-277V

• Input Frequency: 50/60 Hz

• Wattage: 25W

• Power Factor: >0.9

• THD: ≤20%

• Driver Type: Internal, Type B (No Ballast)

Lighting Performance:

• Lumen Output: 3550 lm

• Efficacy: 140 lm/W

• CCT Options: 4000K, 5000K

• CRI: Ra ≥82

• Dimmable: No

• Lifespan: L70 >50,000 hours

Construction & Features:

• Length: 4 Feet

• Installation: Double-Ended Power

• Lens: Anti-UV Frosted Shatterproof Glass

• Color: White

• Operating Temp: -4°F to 113°F (-20°C to 45°C)

• Sensor Compatibility: ON/OFF Occupancy Sensors

Certifications & Warranty:

• Listings: UL (US & Canada), FCC, CE, RoHS

• Rebate Eligibility: Yes (Energy-Efficient LED Qualified)

• Warranty: 5 Years / 50,000 Hours