The Module-Driver interface Special Interest Group (MD-SIG) is a global lighting-industry consortium which has published a specification for a standardized, multi-vendor electrical interface between LED drivers (control gear) and LED modules.

MD-SIG and Zhaga are separate organizations. Please consult the MD-SIG website for up-to-date information.

MD-SIG specifications

MD-SIG specifications can be downloaded from the MD-SIG website or via the links below.

Download LEDset1 Information Interface Specification v1.1

Download LEDset Power Interface Specification v1.0

MD-SIG press release (June 2016):
"MD-SIG launches LEDset specifications for interoperable LED drivers and modules"

Download press release

Links and Articles

DMI specification defines electrical interface between LED drivers and modules

Article in LED Professional Review: October 2015

Enabling LED modules and LED drivers to be fully interchangeable at the component level requires a specification for the electrical interface between the driver and module (DMI). Arnulf Rupp of OSRAM GmbH, a member of both the Zhaga Consortium and MD-SIG, explains the role of both organizations in developing and implementing a consistent, easy to use, cross-vendor DMI specification.

MD-SIG and Zhaga sign liaison agreement

Zhaga News: October 19, 2015

Zhaga and MD-SIG will provide each other with regular updates on their activities and progress.

Zhaga publishes Book 11 specification for small LED spotlight modules

Zhaga Press Release: October 6, 2015

Book 11 is the first Zhaga Book to contain a reference to the LEDset specification for the electrical interface between a Book 11 LED module and a suitable driver. This so-called driver-module interface (DMI) is essential to enable the independent interchangeability of different drivers and modules.

MD-SIG unveils specification for module-driver electrical interface

Zhaga News: September 1, 2015

MD-SIG has published the first part of its specification known as “LEDset,” which offers a standardized, multi-vendor electrical interface between LED drivers (control gear) and LED modules.

Standard release for lighting LED-driver interface

Electronics Weekly article: July 2015

The Module-Driver Interface Special Interest Group (MD-SIG) has released its specification for a universal electrical interface between LED lighting modules and their power supplies. The standard has the support of Osram, Panasonic, Philips and Tridonic.