Beiträge von kurosh

    Hi,

    I have a few shelly 2 dimmers used with Philips dimmable leds. The min and max brightness showm in the app do not work properly. For example, the lowest brightness is reached when the app shows 20% (below that the leds turn off); and the brightness (and usage) is reached when the app shows 50% (after that the wattage does not go up). Also they do not turn on at lowest brightness (20%) although I have set the "Warm-up" option and played with values. Seems like "warm-up" does not kick in for large brightness values like 20%.

    When trying the calibration option in the app, the leds change brightness (and turn off eventually) as if the calibration is happening, but then they cannot be turned on (neither from the app nor using the switch). The only way is to factory reset the shelly and start over.

    As an experiment, I used hallogen lamps and calibrated and then replaced the lamps with philips leds. The range (10% to 50%) is now different (like 10% to 54%). In this case the warm-up works and leds can be lit at lowest brightness.

    I have tried this with 4 philips dimmable 3.5w (GU5.3) as well as 3 philips dimmable 4.2w (GY6.35) leds. (The numbers I mentioned above is from the latter case.)

    I have tried the default trailing edge, as well as leading edge and even ticking the bypass option (although the are no bypasses as I am using the N-wire).


    Any tips? Is there a way to manually calibrate? Or to set max value (in the same fashion as we can set min value) for brightness?