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Description

Keystone Xfit KT-LED13T8-48G-8CSJ-X3 4-Foot T8 LED Tube — 13W / 5-CCT

The Keystone KT-LED13T8-48G-8CSJ-X3 is a highly versatile 4-foot T8 LED linear lamp designed to replace traditional 32W F32T8 fluorescent tubes. This universal Type A+B solution delivers up to 2100 lumens while consuming only 13W, featuring Keystone''s signature ComboDrive X3 technology for ultimate installation flexibility.

Key Features

  • Bulb Shape: 4-foot T8 linear profile
  • Base Type: G13 Medium Bi-Pin
  • Installation Type: Type A+B Universal (Plug and Play or Ballast Bypass)
  • Power Consumption: 13W operation (32W equivalent)
  • Color Temperature: 5-CCT Selectable (3000K, 3500K, 4000K, 5000K, 6500K)
  • Maximum Output: 2100 lumens
  • Beam Angle: Ultra-wide 240-degree light distribution
  • LED Lifespan: 50,000-hour rated life (L70)
  • Enclosed Fixture Rating: Approved for enclosed spaces
  • Certifications: DLC 5.1 Listed, NSF/ANSI Standard 2, and RoHS Compliant

Construction & Aesthetics

Constructed with a durable glass tube and a frosted lens finish to mimic the appearance of traditional fluorescent lamps while providing superior thermal management. The glass design ensures no sagging or yellowing over time, maintaining a 240-degree beam spread for even, shadow-free ceiling illumination.

Electrical & Installation

This is a universal Type A+B ComboDrive X3 lamp. It can operate as a simple plug-and-play Type A tube with most instant and programmed-start electronic T8 ballasts. Alternatively, it can be installed as a Type B ballast bypass lamp wired directly to 120-277V line voltage using either single-ended or double-ended configurations.

Light Output & Performance

Engineered to deliver high-quality, flicker-free illumination with an 80 plus CRI for accurate color rendering. The 5-CCT selectable switch is located on the end-cap, allowing for instant adjustments to the lighting environment. The LED engine is rated for 50,000 hours, significantly reducing maintenance cycles.

Typical Applications

  • Commercial offices and hallways
  • Schools and educational facilities
  • Warehouses and distribution centers
  • Healthcare and retail environments

Specifications

Dimensions

Length/Depth
48 in
Width/Diameter
1.1 in
Height
1.1 in
Weight
0.6 lb

Documents

Style & Materials

Material
Glass

Characteristics & Features

Bulb
T8
Lamp Color
3000K, 3500K, 4000K, 5000K, 6500K, Selectable CCT
Color Rendering
80 CRI
Delivered Lumens
2050
Beam Angle
240
Dimmable
Yes

Electrical Information

Voltage
120-277V
Total Wattage
13W

Item Details

MPN
KT-LED13T8-48G-8CSJ-X3
Brand
Keystone Technologies
Catalog Number
JYS-57
Family
ComboDrive X3
UPC
843654156149

Warranty & Certifications

Product Warranty
10 Years
Lamp Life
50,000 Hours

Shipping & Returns

Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.

Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.

See Full Shipping Policy | See Full Return Policy

Frequently Asked Questions

What does the "T" and the number (T8, T5, T12) mean?

The "T" stands for Tubular. The number indicates the diameter of the tube in eighths of an inch. For example, a T8 tube is 8/8ths (1 inch) in diameter, and a T5 tube is 5/8ths of an inch.

Can I mix Plug-and-Play and Ballast Bypass tubes in the same fixture?

No. You must use only one type of LED tube light per fixture. Plug-and-Play tubes require the ballast to be connected; Ballast Bypass tubes require the ballast to be removed. Mixing them will damage the bulbs and potentially the fixture.

Will an LED tube work with my old magnetic ballast?

Some LED tubes are designed to be compatible with magnetic ballasts, but most modern LED tube lights are optimized for electronic ballasts. It is safest to check the specifications or opt for the Ballast Bypass method.

What is the typical light lifespan of an LED tube?

LED fluorescent replacement lamps are typically rated for 50,000 hours of life, which is significantly longer than the 20,000 to 30,000 hours of traditional fluorescent lamps.

What are the advantages of an LED tube over an LED PL plug-in lamp?

LED tubes provide light linearly and are designed for large troffer fixtures to ensure wide, even light distribution across a large ceiling area. PL lamps are compact and designed for small, recessed downlights.

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Keystone Technologies

For over 75 years, Keystone Technologies has been a leader in the lighting industry, operating under a simple yet powerful philosophy: "Light Made Easy." The brand is dedicated to creating high-quality, reliable, and user-friendly lighting solutions for commercial and industrial applications. With a massive portfolio of lamps, fixtures, and controls, Keystone is the trusted, go-to partner for contractors and lighting professionals seeking performance and simplicity.

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