Dimmable LED high bay UFO: 1-10V, 0-10V and DALI

A dimmable LED high bay UFO is a hall luminaire whose light output you can reduce, usually via a 1-10V, 0-10V or DALI control signal. This lets you adapt the light to how the space is used and save extra energy, for example by giving less light when daylight comes in or nobody is present.

Dimming systems compared

System	How it works	Suitable for
1-10V / 0-10V	analogue control signal via two extra cores	dimming groups of luminaires together
DALI	digital; each luminaire can be controlled individually	larger installations and building management
Sensor	motion or daylight controls the light level	automatic savings

Benefits of dimming

Extra savings: a dimmed luminaire uses less electricity.
Tailored light: more light for precision work, less for storage.
Daylight control: automatically less light when plenty of daylight comes in.
Motion sensor: dims down to, for example, 10 to 20% when nobody is there.

What to look out for

For 1-10V or 0-10V you need a suitable dimmer or controller and an extra control cable. DALI requires a DALI controller. Always check which dimming system the luminaire supports. Also read the different ways to dim LED.

Take a look at our dimmable 200W LED high bay and sensors.

Frequently asked questions

What is the difference between 0-10V and 1-10V?

Both are analogue dimming signals that work in a similar way. The difference lies mainly in the lowest dimming level; check which signal your luminaire and controller support.