LED Dimming Compared Triac DALI 0-10V and PWM
Which dimming protocols are supported on your LED downlights, spot lights, and silicone flexible strips. Triac, DALI, 0-10V, and PWM explained for retrofit and new installations.
- Dimming Protocol Options by Product Type
- Triac Dimming for Retrofit Fixtures
- DALI for Centralised Building Control
- 0-10V and PWM for Linear and Strip Lights
- How to Choose the Right Protocol
Dimming Protocol Options by Product Type
The adjustable downlight, spot light, and silicone flexible strip light ranges support multiple dimming protocols including Triac, DALI, 0-10V, and PWM. Each protocol is selected based on the fixture's design and intended control system.
Triac is used in retrofit downlights and spot lights where existing dimmer switches are already installed. DALI is standard in commercial and architectural projects requiring centralised control. 0-10V and PWM are used in linear and strip lights where precise analog or digital control is needed.
Triac Dimming for Retrofit Fixtures
Triac dimming is supported on retrofit downlights and spot lights with GU10, MR16, E27, E17, E11, and EZ10 bases. It works with standard household dimmers, allowing direct replacement without rewiring.
This protocol is suitable for residential and small commercial spaces where existing dimming infrastructure is in place. It does not require additional control wiring or a central system.

DALI for Centralised Building Control
DALI is supported on recessed adjustable downlights, wall washers, and surface-mounted COB downlights. It enables individual fixture addressing and integration with building management systems.
This protocol is used in offices, hotels, and public buildings where scene setting, scheduling, and energy monitoring are required. It supports two-way communication and remote diagnostics.
0-10V and PWM for Linear and Strip Lights
0-10V dimming is used on silicone flexible strip lights, including wall washing, underwater, and neon flex strips. It provides smooth, continuous dimming from 0% to 100%.
PWM (Pulse Width Modulation) is used on the same strip lights when digital control is needed. It allows for precise brightness adjustment and is compatible with DMX512 and other digital lighting protocols.
How to Choose the Right Protocol
Select Triac if replacing existing dimmable fixtures with minimal wiring changes. It is cost-effective for residential and small-scale projects.
Choose DALI for new installations in commercial or institutional buildings where advanced control, energy reporting, and scene management are required. Use 0-10V or PWM for linear and strip lights in architectural or decorative applications where smooth dimming or digital control is needed.
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Questions on This Topic
Which dimming methods do your retrofit downlights support?
Retrofit downlights support Triac dimming, compatible with standard household dimmer switches. No additional wiring or control system is required.
Can I use DALI with your recessed downlights?
Yes. Recessed adjustable and anti-glare downlights support DALI for individual addressing and integration with building management systems.
Do your silicone strip lights support 0-10V dimming?
Yes. Silicone flexible strip lights, including wall washing, underwater, and neon flex types, support 0-10V dimming for smooth, continuous brightness control.
Is PWM available on your LED strips?
Yes. PWM is supported on silicone LED neon flex strips, especially those with DMX512 or digital control requirements.
Can I mix different dimming protocols in one project?
Yes, but only if each fixture is connected to its compatible control system. Mixing protocols within a single circuit is not recommended.
Still Deciding on the Specification
Send us the application and we will tell you which option we would build for it.