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Keystone KTL-F54T5-841-HO - 4ft 54W T5 High Output Fluorescent Lamp - 4100K

SKU:
KTL-F54T5-841-HO
Minimum Order Quantity:
25 units
To help ensure safe arrival of bulbs and to give you the lowest possible price, this item is only sold in case quantities. Price shown is per bulb. View full description
$138.04
Customer Reviews
Pack
25

Description

Replacement 48" High-Output 54W T5 Fluorescent Tube | Cool White | G5 Base | 5000 Lumens

The Keystone KTL-F54T5-841-HO is a 54W high-output T5 fluorescent lamp, delivering 5000 lumens of bright, 4100K cool white light. Designed for commercial and industrial applications, this G5-base linear fluorescent tube provides excellent lumen maintenance and long-lasting performance, making it an ideal replacement for standard T5 HO lamps.

Key Features:

  • Power Rating: 54W
  • Color Temperature: 4100K (Cool White)
  • Luminous Output: 5,000 lumens (Initial) / 4,700 lumens (Mean)
  • Lumen Maintenance: 94% at 9,600 hours
  • Efficacy: 93 lm/W
  • Base Type: G5 (Miniature Bi-Pin)
  • Nominal Length: 48 inches
  • Rated Life:
    • Programmed Start (3hr/Start): 24,000 hours
    • Programmed Start (12hr/Start): 30,000 hours
  • Low Mercury: 2.5mg for environmental compliance
  • TCLP Compliant: Environmentally responsible design
  • Complies with IEC-61195 standards

Advantages:

  • High-Output Performance: Provides exceptional brightness for large spaces
  • Long Lifespan: Reduces maintenance and replacement costs
  • Energy Efficient: Maintains high efficacy for reduced operational expenses
  • Reliable Lumen Maintenance: Ensures consistent light output over time

Ideal Applications:

  • Commercial and industrial lighting
  • Office buildings and retail stores
  • Warehouses and manufacturing facilities
  • Educational institutions and healthcare environments
  • High-bay lighting fixtures

Technical Details:

  • Model: KTL-F54T5-841-HO
  • Base Type: G5 (Miniature Bi-Pin)
  • Wattage: 54W
  • Color Temperature: 4100K (Cool White)
  • Luminous Output: 5,000 lumens (Initial) / 4,700 lumens (Mean)
  • Efficacy: 93 lm/W
  • Rated Life: Up to 30,000 hours
  • Lumen Maintenance: 94% at 9,600 hours
  • Certifications: TCLP Compliant, IEC-61195 Standard
  • Physical Dimensions:
    • Base to Base: 45.24 inches
    • Base to End of Opposite Pin: 45.42-45.51 inches
    • End of Pin to End of Pin: 45.79 inches
    • Diameter: 0.61-0.63 inches

Disclaimers

*This product is built to order typically ships in 2 to 3 business days. Larger quantities may take longer than stated lead-time.  All lead-times are estimates and you will be notified by email if it will take longer than 5 business days to ship. 
 

Extra Information

Brand:
Keystone Technologies
UPC:
890949006511
Catalog No:
KTL-F54T5-841-HO
EZ Code:
EUK-39
Lamp Type:
Linear
Bulb Type:
T5
Light Source:
Fluorescent
Base:
G5 (Miniature Bi-Pin)
Wattage:
54 Watts
Color Temperature:
4100K
CRI:
85
Nominal Length (in.):
48.00
Warranty:
3 Year System/2 Year Standard
Pack:
25
Price Shown:
Per Bulb

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Carolyn P. Verified Customer   
06-15-25

Good description of products; easy to complete order.

Luchiano L. Verified Customer   
06-12-25

Always is easy, great communication, 110% recomended!

Andrew B. Verified Customer   
06-12-25

Easy order product. Product was as described on website. Product shipping time was not lengthy-

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Questions & Answers
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Popular Questions

12 days ago
I last purchased replacement bulbs from Home Depot back in 2021. I am not finding this product, but perhaps the Keystone product will work. I had Philips Cool White F54T5/TL841/HO/ALTO (T5, 46 inch,4100K). Please confirm if the product above will work. Thank you! See more »
12 days ago

Yes, the Keystone KTL-F54T5-841-HO and the Philips Cool White F54T5/TL841/HO/ALTO are essentially the same type of lamp, designed to be interchangeable replacements for each other. They share the following key specifications:

  • Lamp Type: T5 High Output (HO) Fluorescent
  • Wattage: 54W
  • Color Temperature: 4100K (Cool White)
  • Nominal Length: 4 feet (approximately 46-48 inches)
  • Base Type: Miniature Bi-pin (G5)
  • Lumens: Both typically produce around 5000 lumens
  • CRI: Both have a Color Rendering Index (CRI) of 85 or 82, indicating good color accuracy.

The "ALTO" in the Philips designation indicates their low mercury content, which is also typically a feature of modern fluorescent lamps like the Keystone model.

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