A Fill Light Relay Module can refer to either a lighting control relay module for switching electrical loads or a fill light module for camera systems that adjusts light distribution.

Lighting Control Relay Modules

Lighting relay modules are used in building or industrial lighting systems to control non-dimmable lighting and other switchable loads. They typically feature isolated latching relays, which retain their last state during power interruptions. For example, the DIN Lighting Relay Station provides eight single-pole, single-throw latching relays, each capable of handling 0–277 Volts and up to 10 Amps. Actuator buttons allow manual toggling, and the relays can also function as low-voltage relay stations . The Leviton GreenMAX RELAY-BFM Blank Filler Module is part of a relay panel system, used to fill empty slots in a relay panel while maintaining compliance with standards like Title 24 and ASHRAE 90.1. It ensures proper airflow and safety in the panel and can be replaced or upgraded without affecting the rest of the system . Some relay modules, like the Lighting Relay Module (LRM), can force all relays to an ON state during a loss of normal power, allowing an alternate power source to drive lighting loads .

Fill Light Modules for Camera Systems

In photography or terminal devices, a fill light module provides additional illumination to improve image quality in low-light conditions. Modern devices often have multiple cameras with different field-of-view angles, and a standard fill light may not match all cameras effectively. The patented fill light module (WO2020088316A1) addresses this by including a fill light, a shape memory alloy (SMA) motor, and a light distribution lens. The SMA motor adjusts the distance between the light and lens, changing the fill light angle to match cameras with different viewing angles, ensuring efficient light utilization and consistent image quality in dark environments .

Key Considerations

• For lighting systems: Check voltage, current rating, relay type (latching vs. momentary), and compliance with local electrical codes.
• For camera systems: Consider the fill light intensity, adjustable angle, compatibility with multiple cameras, and power source.
• Maintenance and safety: Ensure modules are installed according to manufacturer instructions to avoid damage or reduced performance. In summary, a Fill Light Relay Module can either manage electrical lighting loads in a building or provide adjustable illumination for cameras, with each type designed to optimize performance in its respective application.