OSRAM LUMILUX T5 Short EL – Emergency Lighting Lamp 8W/840 (G5)

OSRAM Emergency Lighting 8W/840 is a linear lamp from the LUMILUX® T5 Short EL series, designed specifically for emergency lighting systems. Thanks to its specially engineered tube and gas fill composition, it is fully optimized for emergency power supplies (UPS/battery), ensuring immediate ignition even at reduced supply voltage. Neutral white 4000 K and Ra ≥ 80 ensure clear, safe visibility of escape routes in any conditions.

Key features and benefits

• Optimized for emergency power (EL): a special phosphor formulation and electrical parameters ensure stable operation on battery voltage — the lamp meets the standards for emergency lighting fixtures.
• Instant ignition: no delay in starting means the escape route is lit exactly when needed for safety.
• Neutral white 4000 K (840), Ra ≥ 80: the cool-white light increases contrast and readability of emergency signs, while the high color rendering index enables correct color recognition of signals and labels.
• Long life — 4500 h useful life: light output after 4,000 h is 0.99, which means minimal performance loss throughout the declared service life.
• Compact T5 dimensions (Ø 16 mm, 302.50 mm length): fits standard T5 Short emergency fixtures; low weight of 25.71 g makes installation easier in tight housings.
• Efficiency 60 lm/W: at only 8 W, the lamp produces 450 lm — efficient battery energy use extends the autonomy time of the emergency fixture.

Technical data

Electrical and photometric data

Dimensions and lifetime

Additional data and certifications

Application areas

• Public buildings — escape routes, staircases, emergency exits in offices, government buildings, and schools.
• Industry — production halls and warehouses requiring maintained lighting during power outages.
• Shops, supermarkets, and department stores — emergency fixtures above evacuation exits and in circulation paths.

This lamp is intended only for fixtures with an emergency lighting ballast. Do not use it in standard lighting systems without an emergency module.

FAQ – Frequently asked questions

Is this lamp suitable for a standard T5 fixture?

No. The Emergency Lighting (EL) series is optimized for battery-powered emergency drivers. In a standard electronic ballast fixture it may operate incorrectly or fail to ignite. Make sure the fixture has an emergency module compatible with 8W T5 lamps.

What base does this lamp use?

The lamp is fitted with a G5 base (5 mm pin spacing) — the standard for T5 lamps.

How many lumens does the 8W/840 lamp produce?

The luminous flux is 450 lm, which at 8 W results in a luminous efficacy of 60 lm/W.

What is the color temperature and what does “840" mean?

The 840 designation is a color code: the first digit (8) indicates a color rendering index Ra ? 80, and the next two digits (40) indicate a color temperature of 4000 K — neutral cool white, close to daylight and ideal for emergency escape route lighting.

How long does this lamp last?

The declared useful life is 4,500 hours. The B50 lifetime (time until 50% of lamps fail) is 10,000 h. During the first 4,000 h, the luminous flux retains 99% of its nominal value.

What are the lamp dimensions?

The overall length is 302.50 mm (pin-to-pin length: 288.00 mm), the tube diameter is 16 mm, and the product weight is 25.71 g.

Does the lamp contain mercury?

Yes — like all fluorescent lamps. Mercury content is 2.9 mg. In case of breakage, follow the LEDVANCE instructions: www.ledvance.com/brokenlamp. Used lamps should be taken to an electrical waste collection point (WEEE).