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Single white fluorescent tube with 4-pin 2G11 base

SYLVANIA

SYLVANIA 20584 FT40DL/830/RS 40W 3000K 4-Pin Fluorescent Bulb

SKU CH-H2EW-V3ZY8

40 W T5 single-tube fluorescent lamp with 2G11 4-pin base, 3000 K colour temperature, 82 CRI and 20 000-hour rated life

  • TypeFluorescent Bulbs
  • Wattage40W
  • Life Time Hours20000
  • Color Rendering Index82
  • 40 W lamp delivers 20 000 hours of service life
  • 3 000 K colour temperature provides warm white illumination
  • 82 CRI renders colours accurately for everyday tasks
  • 2G11 4-pin base fits compatible rapid-start fixtures
  • Single T5 tube design suits compact fluorescent applications

Sylvania 40 W single-tube compact fluorescent

This Sylvania 20584 lamp is a 40-watt T5 single tube with a 2G11 four-pin base, designed for rapid-start ballasts in commercial or residential fixtures. It produces a warm 3000 K colour temperature and carries an 82 CRI rating for acceptable colour rendering. The rated life is 20 000 hours under standard rapid-start operation.

Suitable for recessed

The bulb fits luminaires that accept a 2G11 base and are wired for rapid-start control gear; it will not operate on instant-start or preheat ballasts. Installers who need a different wattage, colour temperature or base type should select an alternative lamp. Buyers seeking LED replacements or integrated driver solutions must look elsewhere.

2G11 four-pin base with rapid-start requirement

The lamp only works in fixtures wired for a 2G11 base with a compatible rapid-start ballast. Verify the ballast type before purchase to ensure reliable starting and full rated life.

Highlights

  • 40 W lamp delivers 20 000 hours of service life
  • 3 000 K colour temperature provides warm white illumination
  • 82 CRI renders colours accurately for everyday tasks
  • 2G11 4-pin base fits compatible rapid-start fixtures
  • Single T5 tube design suits compact fluorescent applications

Specifications

BrandSylvania
TypeFluorescent Bulbs
Wattage40W
Life Time Hours20000
Color Rendering Index82

Questions about this item

How much light does the 40W rating actually produce in a real fitting?

The lamp draws 40 watts and is rated for 20000 hours of operation at that power level.

What does the 4-pin 2G11 base limit in practice?

The 2G11 4-pin base requires a compatible rapid-start ballast; it will not work on instant-start or preheat gear.

What clearance does the single T5 tube need to fit and mount?

The single T5 tube fits a 2G11 4-pin socket; allow enough length for the straight tube plus the base pins.

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