I have some LED floodlamps (dimmable via 0-10V control) that I plan on using at my home.
There's essentially no ambient light (other than moonlight) at the house, so I would like to use the floods at a low brightness level (25%?) to provide a little ambient light during the night.
Are there any negative effects to the LED lights when they are on for hours at a time at low brightness levels?
I have 3 LED soffit lights in the front of the house that are dimmed to 20% from sunset to sunrise. They have been like this for over 2 years.
I have LED lights in my gazebo that are also at 20% from sunset to 10pm. They have been like this for about 3 years.
All these are dimmable so they are designed to be dimmed. I would expect the lower voltage at the LED would prolong its life.
Not sure about dimming bulbs that were not designed to be dimmed.
In theory, the lower the brightness (and the lower the DC current), the longer the life of the LED. However, my experience with commercial/industrial LED fixtures is that the actual LED array is the least likely component to fail. Much more likely to fail is the power supply (AKA the driver). The most important factors in the life expectancy of the driver are the quality of the components used in its assembly and its ability to dissipate heat.
Long story short...a good quality bulb/fixture should last a very long time, even when used as you describe.
Thanks for the comments. I didn't expect there would be any negative consequences, but I didn't have anything to base that on.
But while we have you here....how about sharing what Zigbee/Z-wave control you use for that 0-10v signal. I've yet to put that into place on mine.
My plan is to use a Zooz ZEN54 LR 0-10V dimmer module in the wall box behind a Zooz ZAC99 momentary rocker switch. I've only bench tested this setup so far (house is still under construction), but it seems to work well.
Thanks.
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