We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact quad-tube fluorescent bulb with 4-pin G24Q-2 base, cool white finish

SYLVANIA

SYLVANIA 18W Quad Tube G24Q-2 4100K fluorescent bulb

SKU CH-ZCA7-XXF0W

18 watt quad-tube fluorescent bulb with G24Q-2 base, 1250 lumens at 4100K and 12000-hour rated life

  • Power rating18
  • Light output1250
  • Color temperature4100K
  • Lifespan (hours)12000
  • Color rendering82
  • Product typeFluorescent Bulbs
  • 1250 lumens brightens work areas efficiently
  • 18 watts reduces energy use versus higher-wattage bulbs
  • 12000-hour rated life extends replacement intervals
  • 4100K cool white suits task and office lighting
  • G24Q-2 4-pin base fits compatible electronic ballasts

Product identity

The Sylvania 18 W quad-tube fluorescent bulb delivers 1250 lumens at a 4100 K colour temperature with a CRI of 82. It fits G24Q-2 four-pin sockets and is rated for 12 000 hours of operation. The lamp suits commercial recessed fixtures, task lighting and retail displays that need cool-white output.

Installation notes

The 5.8 inch quad-tube plugs directly into compatible electronic or dimming ballasts without tools. Ensure the ballast matches the G24Q-2 base and 18 W rating; mismatched gear causes flicker, reduced life or failure to start. Verify fixture clearance for the tube length before fitting.

Sustained operation

Light output remains stable during continuous use when paired with a correct electronic ballast. The 12 000 hour rating assumes proper thermal management in the fixture; enclosed housings without ventilation can shorten lifespan. Dimming ballasts maintain colour consistency across the dimming range.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 90% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameSylvania
Product typeFluorescent Bulbs
Display
Light output1250
Power
Power rating18
More details
Color temperature4100K
Lifespan (hours)12000
Color rendering82

Questions about this item

How can I verify the bulb is operating correctly after installation?

The bulb should emit a neutral-white 4100K light at roughly 1250 lumens without flickering when powered by a compatible electronic or dimming ballast.

What comes with the bulb and what must I supply separately?

The package contains the 18W quad-tube G24Q-2 fluorescent bulb only; a matching electronic or dimming ballast and a G24Q-2 socket are required but not included.

Which version should I choose if my fixture uses a G24Q-2 base and an electronic ballast?

Select the 18W quad-tube model with 4-pin G24Q-2 base, rated 1250 lumens at 4100K and 12000-hour life for electronic or dimming ballast compatibility.

More in General-Purpose & Specialty Bulbs

Similar items