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
Six 6-inch T5 fluorescent tubes, soft white, miniature bi-pin base

SYLVANIA

SYLVANIA 23512 F4T5SW 4 W 3000 K 130 lm 6 in fluorescent tube accessory

SKU CH-M5ZR-T6TPD

Pack of six 4 W T5 fluorescent tubes delivering 130 lm of 3000 K soft white light for desk, step or under-cabinet use

  • Power rating4
  • Product typeFluorescent Tubes
  • Pack of six tubes covers multiple fixtures
  • 4 watts draws minimal power per tube
  • 130 lumens provides functional task lighting
  • 3000 K soft white suits warm ambience
  • Miniature BiPin base fits compatible sockets

Sylvania 23512 fluorescent tube pack

This pack contains six F4T5SW tubes rated at four watts each and 3000 Kelvin soft white. The miniature BiPin base fits fixtures designed for T5 lamps. They are suited to desk lamps, step lighting and under-cabinet tasks where a compact linear source is needed. Buyers needing higher lumen output or a different colour temperature should look elsewhere.

Capacity and headroom

Each tube delivers 130 lumens at a CRI of 52, providing modest illumination for accent or utility purposes. The low wattage limits brightness, so the tubes are not intended for primary room lighting or tasks that demand high colour fidelity. They run on standard magnetic ballasts paired with an FS-5 starter.

Thermals noise and power draw

At four watts per tube the heat output is minimal and the lamps operate silently. Power consumption stays low, making them practical for always-on locations such as stair risers or display cabinets. No active cooling is required and the tubes add negligible load to the circuit.

How it compares

Measured against everything we stock in Lighting Fixtures & Bulbs, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 70% of the 491 comparable items (median $28.99).

Specifications

Product
Brand nameSYLVANIA
Product typeFluorescent Tubes
Power
Power rating4

Questions about this item

Will the 4 W T5 tubes with 3000 K colour run on the ballast I already use for older F4T5 lamps?

These 6-inch F4T5SW tubes draw 4 W and share the miniature BiPin base, so they fit existing fixtures designed for the same wattage and base type.

How can I confirm each tube is delivering the rated 130 lumens after installation?

A light meter held at the working plane should read roughly 130 lumens per tube when the FS-5 starter and ballast are operating normally.

Does the pack of 6 include the FS-5 starters or do I need to buy them separately?

The box contains six 23512 fluorescent tubes only; the FS-5 Sylvania starters required for operation are sold separately.

More in Lighting Fixtures & Bulbs

Similar items