Just tried installing am Inovelli z-wave dimmer w/o a neutral wire. The light switch connects to 6 9watt LED bulbs (so the load is over 25 watts). Once the switch is installed, flip back on the breaker, and turn the lights back on, the bulbs rapidly flicker at full brightness. Lights continue to flicker even when I try shutting off the light. Only way to turn it off is to flip the breaker. Bulbs are Feit B30 LEDs. Supposed to work with a dimmer. Any idea what's going on here?