Abstract: A sealed utility transceiver assembly includes a transceiver board, a sealed housing, and a measure of liquid potting compound. The transceiver board includes multiple components and an antenna. The sealed housing includes a cavity within which to house the transceiver board. The measure of liquid potting compound encapsulates a portion of the transceiver board within the sealed housing, which portion does not include the entirety of the antenna.

Abstract: A system controls high power devices according to ambient light levels. The system includes a latching relay, a latching relay driver, an ambient light sensor and a relay bulk power supply. The latching relay switches power on and off to the high power devices, and the latching relay driver energizes the latching relay, using power from on-periods when the latching relay is closed. The ambient light sensor controls when the latching relay driver energizes the latching relay, and the relay bulk power supply stores power from the on-periods to be used to energize the latching relay during off-periods when the latching relay is open.