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Ushio 26W triple-tube fluorescent bulb with 4-pin base, cool white finish

Ushio

Ushio 3000218 CF26TE/865 26W 4 Pin Triple Tube Fluorescent Bulb

SKU CH-3381-PTRHC

A 26-watt triple-tube fluorescent bulb with a 4-pin base, 6500K colour temperature and 1710 lumens for electronic ballasts

  • TypeFluorescent Bulbs
  • Lumen Range1710
  • Wattage26
  • Color Temperature6500K
  • Life Time Hours10000
  • Color Rendering Index82
  • 1710 lumens at 26 W for efficient output
  • 6500 K daylight colour for clear visual tasks
  • 10000-hour rated life reduces replacement frequency
  • CRI 82 renders colours accurately
  • 4-pin base fits electronic dimmable ballasts

Ushio 26W Triple-Tube Fluorescent

The Ushio 3000218 CF26TE/865 is a 26-watt compact fluorescent lamp with a four-pin base designed for electronic ballasts. It delivers 1710 lumens at a 6500K daylight colour temperature and a colour rendering index of 82, making it suitable for general indoor lighting where accurate colour perception is needed. The triple-tube design packs output into a compact form factor for standard fixtures.

Thermals Noise and Power Draw

The lamp consumes 26 watts during normal operation and runs cooler than equivalent incandescent sources, reducing heat load in enclosed fittings. Electronic ballast operation eliminates the audible hum and visible flicker associated with magnetic gear, providing silent, stable illumination. Rated life of 10000 hours means fewer replacements and lower maintenance cycles.

Build Fit and Compatibility

The four-pin base requires a compatible electronic ballast and will not operate on magnetic ballasts or direct mains voltage. Dimmable function depends on a dimming-capable ballast and appropriate control gear, which must be sourced separately. Buyers needing higher lumen output or a different colour temperature should select an alternative lamp.

Highlights

  • 1710 lumens at 26 W for efficient output
  • 6500 K daylight colour for clear visual tasks
  • 10000-hour rated life reduces replacement frequency
  • CRI 82 renders colours accurately
  • 4-pin base fits electronic dimmable ballasts

Specifications

BrandUshio
TypeFluorescent Bulbs
Lumen Range1710
Wattage26
Color Temperature6500K
Life Time Hours10000
Color Rendering Index82

Questions about this item

How do I install the 4-pin base into an electronic ballast fixture, and what is the common mistake?

Align the four pins with the socket keyway and push straight in until seated; the common mistake is forcing the bulb at an angle, which bends the pins.

What maintenance or replacement will the CF26TE/865 need after its rated life?

After approximately 10000 hours the lamp reaches end of life and must be replaced; no intermediate maintenance is required.

At what point does the 6500K colour temperature shift become noticeable during continuous operation?

Colour shift typically appears near the 10000-hour rated life as phosphor degradation reduces the 82 CRI and alters the 6500K output.

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