I correctly installed a HS200 switch to replace an old switch that turns on 4 banks of tube lights (T8) in the drop ceiling of my basement. It is installed correctly and connected to my wifi network but I cannot turn on the tube lights either manually thru the switch or thru the Kasa app. The wifi light is on (when dark) and the switch makes a click everytime I use the app to turn it on or off but the lights do not turn on.
Eventually I replaced the HS200 with the old switch and it turns on the tube lights.
Does any one know the problem? The tube light fixtures are about 15 years old and most likely have magnetic ballasts

(I replaced two other old switches that controlled regular bulbs (not tube lights) with HS200 switches and these are working great.