Electrical apparatus;, namely, power supply housed either in a metal or plastic case or not housed in a package and shipped as a printed circuit board (PCB) with all the electronic components mounted on the PCB. This power supply provides either a constant voltage, constant current or both" and "Apparatus for environmental control;, namely, LED (Light Emitting Diode) driver housed either in a metal or plastic case or not housed in a package and shipped as a printed circuit board (PCB) with all the electronic components mounted on the PCB. This LED driver provides either a constant voltage, constant current or both and controls the current and/or voltage that flows into a LED or string of multiple LEDs
Electrical and Scientific Apparatus