| 摘要 |
A system of extra-low voltage outdoor lighting in which any number of light fixtures each have an individual control module, internal to the fixture or external to the fixture. The control module allows for the use of a power supply transformer (120 volt AC) manufactured to supply power to the extra-low voltage secondary transmission conductors, ranging fr om 12 volts up to a maximum of 30 volts AC, thus in some instances carrying voltage which is significantly higher than standard to the said control module. Each extra-low voltage fixture of 12 volts is fed from this over-voltage transformer through extra-low voltage secondary transmissi on conductors and through the control module, which rectifies the supply voltage to DC and the n regulates that same voltage. Further, the control module, which produces an output voltage to an extra-low voltage fixture, commonly 12 volts, can be set and reset according to desire d light output by means of an accessible dimming control to a range of voltage from 12 volts (average) and below. The system is especially suited for garden and architectural lighting and th e dimming of lamps therein, the result of which is energy conservation in several ways, as will be described. The control module will also function with DC inputs from 12 to 30 volts, such a s alternate energy systems including solar power. In one embodiment, the individual light fixtures allow for the fitting of the above control module inside the fixture housing. The housing can be converted from an up-light to a down-light without tools with the inclusion of a light tube and mushroom cap. The control module and transformer can be utilized to upgrade extra-low voltage outdoor lighting systems and other manufacturer's fixtures already in use. |
