Dimming and control protocols differ in how they signal fixtures and what they are best suited for. This chart compares the main options.
| Protocol | Type | Best for |
|---|---|---|
| 0-10V | Analog dimming | Simple zone dimming in commercial spaces |
| TRIAC | Phase-cut (line voltage) | Residential and retrofit dimming |
| DALI | Digital addressable | Commercial, per-fixture control and feedback |
| DMX512 | Digital | Stage, color, and entertainment lighting |
| Wireless (BLE/Zigbee) | Digital RF | Retrofits and smart-home control |
See the DALI Dimming Guide and DMX Dimming Guide.
Comparing lighting control protocols
Control protocols differ in how they signal fixtures and what they suit. Phase (TRIAC/ELV) dimming works over existing mains wiring and is simplest for homes, though dimmer-to-driver compatibility can be finicky. 0–10V is a reliable analog standard for commercial dimming, needing an extra low-voltage pair. DALI is a two-way digital protocol that addresses fixtures individually for flexible zones and scenes, ideal for larger commercial spaces. DMX is built for fast, precise control of many channels in stage, entertainment, and color-changing work. Wireless systems (Bluetooth or Zigbee mesh) avoid control wiring and suit retrofits. Match the protocol to the project’s scale and how much zoning and flexibility it needs.
Quick guidance: for a home, phase or wireless dimming is usually simplest; for a commercial office or school, 0–10V or DALI; for stage, architainment, or RGBW color, DMX. Whatever you choose, confirm the fixture’s driver explicitly supports that protocol — mismatched dimming is the most common cause of flicker, buzz, or a limited dimming range.