Tridonic 20575656 20OMBIS 250 1/2 B103W – Limited Stock

20575656 Technical data

Lamp wattage 250W
Lamp type HS / HI
Rated lamp current 3.0 A
Type OMBIS 250 1/2 B103W
Article number 20575656
Voltage 230 / 240 / 250 V
Mains frequency 50 Hz
EEI A3
Thermal protection Yes
Length L 147 mm
Fixing dimensions Hole spacing D 130 – 139 mm
Hole spacing D1 105.5 mm
Core length KL 85 mm
ΔT 70 K
Losses 18.3W

High Pressure Sodium Lamps

HPS (High Pressure Sodium) lamps are a type of high-intensity discharge lamp known for their energy efficiency and high light output, producing a distinctive yellow-orange glow.

They are commonly used for outdoor area lighting like streetlights and for commercial growing, especially during the flowering and fruiting stages of plant growth, due to their intense, deep-penetrating light spectrum. Key features include a long lifespan, a ballast to regulate current, and a warm-up period to reach full brightness.

How they work

An electric current is passed between two electrodes at the ends of a ceramic arc tube.

The arc tube contains a mixture of mercury, metal salts, and sodium.

Xenon gas is used as a starter gas to help strike the arc.

As the arc is struck, the xenon and mercury are ionized and the arc tube heats up.

As the temperature and pressure increase, the sodium vaporizes and the characteristic yellow-orange light of the HPS lamp is produced.

The outer glass envelope insulates the arc tube and contains a vacuum or inert gas to help manage heat.

Metal halide Lamps

Metal halide (MH) lamps are high-intensity discharge (HID) lights that produce bright, white light by passing an electric arc through a gas mixture of vaporized mercury and metal halides.

They are known for high luminous efficacy, long lifespan (compared to older technologies), and excellent colour rendering, making them suitable for large indoor and outdoor areas like sports arenas, warehouses, and streets. However, they require a ballast to operate and have a warm-up period to reach full brightness.

How they work

An electric arc is struck between two electrodes inside a quartz or ceramic arc tube.

The arc vaporizes mercury and other metal halides (compounds of metal and halogens like bromine or iodine).

The mixture of vaporized gas and metal halides creates a high-intensity, full-spectrum light when energized.

Tridonic are a Zumtobel Group company, founded in 1956 in Dornbirn, Austria. For more than 60 years, they have been a driving force in the development of professional lighting solutions.

Today, Tridonic is a world-leading provider of lighting technology for professional applications, including office buildings, and retail outlets, hotels and restaurants, the education industry and outdoor lighting sectors.

In Tridonics’ extensive range of energy-efficient dimmable and non-dimmable LED drivers they offer the right products for every indoor and outdoor application – from cost-efficient LED drivers in proven Tridonic quality to premium products that give you maximum flexibility and convenience.

Tridonics’ dimmable LED drivers can be controlled with different analog and digital dimming signals. Tridonic basicDIM Wireless products allow wireless control without additional wiring.