LED modules reduce the number of individual components an equipment designer must integrate directly. The module can establish emitter spacing, electrical connections, board geometry, mounting locations, and other relationships before it is installed into the finished lighting assembly.
Module Architecture
Emitters Mounted to a Defined Platform
A basic LED module may consist of LEDs mounted to a circuit board with pads or connectors for electrical input. More integrated versions can also include optics, protective components, current regulation, sensors, or mounting hardware.
Circuit Boards
Board Construction Supports the Module
The circuit board defines LED placement and electrical routing. In many lighting assemblies, it also helps move heat toward the housing or heat spreader.
Manufacturing techniques associated with printed circuit board assemblies are relevant because LED modules combine semiconductor devices, connectors, passive components, and conductive routing on a repeatable manufactured platform.
Electrical Interface
Connectors and Wiring
Modules may connect with soldered wires, terminals, board connectors, plugs, or other interfaces. Connection choice should account for current, voltage, polarity, retention, assembly sequence, environment, and service access.
Standardized interfaces can simplify replacement, while direct wiring can reduce component count in tightly integrated products.
Mechanical Interface
Mounting and Alignment
Mounting holes, slots, locating features, board edges, thermal pads, clips, or fasteners position the LED module within the fixture.
Where secondary optics are used, mechanical alignment can directly affect the beam produced by the finished assembly.
Thermal Interface
Moving Heat Out of the Module
The board-to-housing interface should provide the required thermal path without compromising electrical isolation or mechanical stability.
Flatness, interface material, contact area, fastener placement, board thickness, and housing material can all influence heat transfer.
Thermal Management →OEM Use
Modules Inside Custom Lighting Assemblies
A module can become the central light-producing component inside a custom fixture. The OEM housing can then provide environmental protection, thermal spreading, mounting, connectors, and the final optical system.
Custom Lighting Assemblies →Selection