Since I didn’t want to dismantle the power plugs, the only remaining thing was to try things out – maybe Dennerle build something that has no problems being driven with PWM ? LEDs are best driven by constant current source and if Dennerle built it like this, then there could be drawbacks in using PWM to alter the brightness (see Is It OK to PWM a current source?). ![]() The standard way of controlling the brightness of an incandescent light bulb is using Pulse Width Modulation (resistive load, voltage source). I wondered if I can build something similar for the 3 other LED lamps I own, a Dennerle PowerLed 5.0 and two Dennerle Style Led L. ![]() The AI Sol Nano LED light fixture installed over my mini reef has one very nice feature – “fade in” to a set brightness in the morning and “fade out” to Moon light in the evening.
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