Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a metal core PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom of the PCB. A thermally-conductive material abuts the bottom surface of the PCB and the back shell portion. A watertight underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. In one embodiment, a quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom surface of the PCB. A thermal bridge abuts the bottom surface of the PCB on one side and a heat sink on the other. A thermally conductive potting material fills spaces between the heat sink and the back shell portion. An underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. A quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom surface of the PCB. A thermal bridge abuts the bottom surface of the PCB on one side and a heat sink on the other. A thermally conductive potting material fills spaces between the heat sink and the back shell portion. An underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. A quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: The children's organizational notebooks are a system of calligraphy notebooks that are color-coded to relate to a particular academic class or subject. For example, a green notebook could relate to a computer class, a red notebook could relate to a science class, etc. The notebooks are fashioned to employ different calligraphy (first, second, third, quadrille 5 mm, 6 mm, 7 mm and regular lines). As presently contemplated, the notebooks will be available in eight different, bright colors.