DALI, it is a data transmission protocol, which defines the communication method between the electronic ballast and the device controller. Popular understanding: that is, the communication protocol between DALI dimming driver or DALI dimming power supply and DALI controller in DALI system. It is not a new bus, but it supports open systems. The original goal of designing and applying DALI is to Optimize an intelligent lighting control system to develop a lighting control system with simple structure, easy installation, easy operation and excellent functions.

The system can be used for lighting control in a room, and can also be interfaced with the building management system BMS. The DALI system is different from BMS or EIB, LON bus systems. It is not expanded into a system with various complex control functions, but only as a system A lighting control subsystem, integrated into the BMS through a gateway interface, can accept BMS control commands, or recover the operating state parameters of the subsystem.

DALI is an internationally public lighting control communication protocol that specifies the digital communication control method between electronic ballasts, control units and various sensors. DALI is a protocol specifically used for lighting control. The demand for LED solutions and lighting control systems is increasing. DALI dimming methods are used more and more widely. DALI dimming systems and 60W DALI dimming power supply are gradually expanding. Market share, and thyristor dimming, 0-10V dimming has become the mainstream dimming method in the market.