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
A 34 inch fluorescent T5 tube with mini bi-pin base

GE

GE 71640 F21T5/850/WM/ECO 34in 5000K 20W 2000lm Fluorescent T5 Tube

SKU CH-RGQN-0ASX2

A 34-inch T5 fluorescent tube delivering 2000 lumens of 5000K daylight from 20 watts with a mini bi-pin base

  • Power rating20
  • Lighting color5000K
  • Bright 5000K daylight colour for clear visibility
  • 2000 lumen output from only 20 watts
  • 34 inch T5 tube fits standard fixtures
  • Mini bi-pin base allows quick installation
  • Case of 40 tubes suits high-volume needs

Commercial fluorescent tube for general lighting

The GE 71640 F21T5/850/WM/ECO is a 34 inch T5 fluorescent tube delivering 2000 lumens at 5000K daylight colour. It operates at 20 watts and fits fixtures with a mini bi-pin base. Supplied in a case of 40, it suits offices, retail spaces and workshops needing consistent cool-white output.

Case quantity simplifies bulk installation

A single carton provides 40 identical tubes, reducing reorder frequency for facility managers. The mini bi-pin base ensures direct compatibility with standard T5 fixtures without adapters. Uniform 5000K output across the batch maintains colour consistency throughout large installations.

2000 lumen output covers typical ceiling grids

At 20 watts each, the tubes suit standard T5 troffers and strip fixtures in drop ceilings. They are not dimmable and do not operate on electronic ballasts not rated for F21T5/850/WM/ECO lamps. Buyers needing higher lumen packages or different colour temperatures should select alternative models.

How it compares

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

Price $110.99
Pricier than about 90% of the 491 comparable items (median $28.99).

Specifications

Product
Brand nameGE
Power
Power rating20
More details
Lighting color5000K

Questions about this item

How often will the GE 71640 F21T5/850/WM/ECO tube need replacing under normal use?

The tube is rated for 2000 lumens at 20 watts; replacement is typically needed when light output drops noticeably, usually after the rated lamp life is reached.

What limits continuous operation of the GE 71640 34in T5 tube first?

The 20 watt power draw and fluorescent technology mean heat buildup in the fixture ballast is the first limiting factor during sustained all-day use.

How much heat and noise does the GE 71640 5000K T5 tube produce when run all day?

The 20 watt tube runs cool with minimal heat; any audible hum comes from the external ballast, not the tube itself, and is typically low in modern fixtures.

More in Lighting Fixtures & Bulbs

Similar items