(those dreadful "corn cob" lamps are not aimed.)Īlso, the color of any LED is so much better than HPS that it will appear to be brighter light. down), the LED will be much more efficient because it is aimed where desired, and not trying to light up inefficient reflectors.
However, if the LED is aimed (largely one-directional, e.g. Keep in mind high-pressure-sodium is extremely efficient, so a 70 watt LED will probably not be quite as bright. Make the center of the socket the "hot" and the shell of the socket (where the screw threads are) the "neutral". While you're on the ground, attach a short length of brown and blue (or black and white in North America) wire to the socket, blue/white=neutral=shell. You don't want to do anything up there except fit two wire-nuts (or whatever removable splice you use in your country). Then you need to open up the fixture and alter the internal wiring so the incoming mains power feeds the mogul socket straight, and the transformer/ballast/ignitor are entirely disconnected.ĭo not attempt to hardwire the mains cable direct to the socket whilst on the top of a ladder. You will need to pull the light fixture down off the wall/pole. This is not as simple as screwing in the LED replacement. Needless to say, you don't want to put any other kind of bulb there. The transformer limits current (at a variety of voltages, settling at 55V) and the ignitor spikes a 3000 volt pulse onto the HPS bulb to initially strike the arc. Your HPS (High Pressure Sodium) lamp has a ballast made of a hefty transformer, capacitor and "ignitor circuit".
#70w led dusk to dawn light driver
LED's have a driver circuit, but it's small, and it's built into screw-in LED "bulbs". Any light has a ballast or driver, except incandescent
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