Abstract: A sterilizing system including a sterilization device that emits UVC radiation and visible radiation into an irradiation field, a sensor to detect an object within the irradiation field and measure photoluminescence of a target pathogen within the irradiation field, and an indicator device. Control circuitry may control operation of sterilizing radiation responsive to detecting the target pathogen and collect information about contamination levels. A server may collect and aggregate contamination level information from multiple sterilization devices.

Abstract: Light fixtures, lighting methods, and devices for mounting ornaments are provided. The light fixtures and methods overcome the limitations of the prior art by permitting electrical power transmission to the light sources, such as, LEDs, through the light fixture suspension elements. The light fixtures include a first ring suspended by a plurality of first cords; and a second ring suspended by a plurality of second cords from the first ring; wherein at least one of the first ring and the second ring comprises a plurality of light sources; and wherein at least one of the plurality of first cords and at least one of the plurality of the second cords are adapted to transmit electrical power to the plurality of light sources. Methods of mounting light sources and ornament mounting arrangements are also disclosed.

Abstract: Light fixtures, lighting methods, and devices for mounting ornaments are provided. The light fixtures and methods overcome the limitations of the prior art by permitting electrical power transmission to the light sources, such as, LEDs, through the light fixture suspension elements. The light fixtures include a first ring suspended by a plurality of first cords; and a second ring suspended by a plurality of second cords from the first ring; wherein at least one of the first ring and the second ring comprises a plurality of light sources; and wherein at least one of the plurality of first cords and at least one of the plurality of the second cords are adapted to transmit electrical power to the plurality of light sources. Methods of mounting light sources and ornament mounting arrangements are also disclosed.