I have just installed a HS 220 Dimmer Switch to operate dimmable LED direct wired T8 4’ tube fixtures (no ballasts). Each tube is rated at 16Watts with 2 tubes per fixture. The switch works and dims just fine with only 2 tubes plugged in (1 in each fixture, or 2 in one fixture) if I put 2 in each fixture, or 4 total, then the dimming does not work, the lights all flash at anything less than full on. The switch is advertised to handle up to 150W. 4 tubes is only 64W. Any ideas on how to resolve this?
The switch is a HS220 Hardware V 2.0 Firmware Version 1.0.3