Looking for an efficient and effective way to automatically refill your snow machine's fluid reservoir during an animated holiday light show? Look no further than this relay board specifically designed for that purpose.

This relay board is easy to use and controls a pump that refills a small fluid reservoir next to the snow machine from a larger one sitting on the ground underneath the machine, which could be a 5-gallon bucket or any other container.

To trigger the pump, this relay board uses two float switches (not included). One float switch is placed in the lower fluid reservoir to signal when there is sufficient fluid for the pump to turn on. The second float switch is placed in the upper small fluid reservoir and signals when the fluid is getting low and needs to be refilled. The relay board also includes two LED indicator lights. One light shows when the board is powered, and the other light indicates when the pump is currently running.

Connecting the relay board is simple. Just connect the PWR IN connector to a 12v DC power supply and the PUMP connector to a 12v pump of your choice. The two float switches connect to the FLOAT 1 and FLOAT 2 connectors, and it doesn't matter which float switch connects to which connector.

Make your holiday light show even more impressive with this relay board that ensures your snow machine never runs out of fluid!