T5 LED Tube 1148 mm 18W 200 lm/W

T5 LED tube 1148 mm 18W with 200 lm/W

This 1148 mm T5 LED tube (approx. 115 cm) is the LED replacement for a 28W T5 fluorescent tube with a length of 1149 mm. Our most efficient T5 LED tube. At 200 lumens per watt you get the maximum light from every watt and reach energy class B. At 18 watts the tube delivers 3,600 lumens at 4000K, around 40% more light than a standard 28W HE T5 fluorescent tube. It fits any G5 lampholder, starts instantly and is flicker-free.

Key features

• Up to 44% more efficient than a 28W T5 fluorescent tube with ballast
• 3,600 lumens from 18 watts, an efficacy of 200 lumens per watt
• G5 cap with single-ended connection: safe and easy to wire
• Full light instantly, with no warm-up time, flicker or buzzing
• Aluminium housing with opal PC cover: even light and no broken glass
• Over 13 years of life at 10 hours a day, plus a 5-year warranty

Which T5 fluorescent tube does this replace?

T5 fluorescent tubes with a length of 1149 mm come in several wattages. This LED tube replaces the 28W HE version (approx. 2,600 lumens). Together with its ballast, a 28W T5 tube uses around 32 watts, while this LED tube uses 18 watts. Using 54W HO tubes of this length? This tube uses about two thirds less energy, with slightly less light per tube.

Example: at 10 hours a day and 250 working days a year, you save around 35 kWh per tube per year. With 20 tubes that adds up to about 700 kWh a year, with no more replacement costs for fluorescent tubes.

Calculate what this saves you in euros

Replacing a T5 fluorescent tube with LED: how it works

A T5 fitting always works with an electronic ballast and has no starter. This LED tube does not need the ballast: the driver is built into the tube and runs directly on 200-240V. When converting, remove or bypass the ballast and connect live (L) and neutral (N) to the lampholder at one end. Then fit the tube with the marked supply end in that lampholder. The other end only holds the tube in place.

Please note: do not fit the tube in a fitting where the ballast is still connected, and do not connect it to a dimmer. If in doubt, have the conversion carried out by an electrician.

Prefer to replace the whole fitting? A 120 cm T5 LED fitting is already wired for single-ended supply: fit the tube, connect the mains cable and you are done.

View the installation instructions

Where to use this 115 cm T5 LED tube

• Offices and classrooms: in surface-mounted, recessed and suspended fittings
• Shops and showrooms: for even light above shelves and counters
• Corridors and practice rooms: where lights stay on for long hours
• Light lines: continuous lines in offices and retail

The tube is suitable for dry indoor spaces. For damp rooms, outdoor use or dusty areas, choose a waterproof (IP65) fitting.

How many m² does one tube light?

As a rule of thumb, about half of the light actually reaches the working surface. With 3,600 lumens, one tube lights around 6 m² at 300 lux (corridors, storage, canteens) or 3.5 m² at 500 lux (offices and workstations according to BS EN 12464-1). For a 20 m² office you would need about 6 tubes. Ceiling height, wall colour and the type of fitting determine the exact result.

Which light colour should you choose?

This tube is available in 3000K, 4000K and 5000K.

• 3000K Warm white: soft, yellowish light. Pleasant for hospitality, waiting areas, living spaces and anywhere atmosphere matters.
• 4000K Neutral white: neutral white light. The most popular choice for offices, classrooms, shops and corridors.
• 5000K Daylight white: fresh and bright, close to daylight. Good for workshops, warehouses and spaces where you need to see detail.

The 3000K version gives slightly less light: around 3,420 lumens.

More about light colour

Frequently asked questions

Will this LED tube fit my existing T5 fitting?

Yes, if the fitting has G5 lampholders and takes tubes of 1149 mm. The ballast does need to be bypassed, as described above. Without this change the tube will not work.

What is the difference between T5 and T8?

A T5 tube is slimmer (about 16 mm for a fluorescent tube, 22 mm for this LED tube) and has a G5 cap with small pins. A T8 tube is about 26 mm thick and has a G13 cap. The lengths also differ, so T5 and T8 are not interchangeable.

What is the difference between 140, 170 and 200 lm/W?

The figure shows how much light the tube produces per watt. At the same wattage, a 200 lm/W tube gives over 40% more light than a 140 lm/W tube. Choose 140 lm/W if you want the same amount of light as now, and 170 or 200 lm/W if you want more light or fewer fittings.

Is the tube dimmable?

No, this T5 LED tube is not dimmable. Do not connect it to a dimmer or a dimmable ballast.

How long does the tube last?

The rated life is 50,000 hours. At 10 hours a day, that is over 13 years. A standard T5 fluorescent tube lasts around 20,000 to 25,000 hours. You get a 5-year warranty.