I've read through a few of the posts about similar problems that were resolved, but I can't seem to resolve mine.
I've tried 2 PD-6WCL-WH-R single-pole wireless dimmers. One controls a switch for 2 Philips Hue A19 White Ambiance bulbs (21 total watts), the other controls a switch for 3 Philips Hue E12 White Ambiance bulbs (18 total watts). My old house has no neutral wire and there are no ground wires to the switch boxes. I replaced the existing toggle switches with Caseta Wireless PD-6WCL-WH-R switches to control and automate the LED lights.
The problem in both cases is that the lights just Flash about once per second. I followed the instructions to trim on both switches, but that did not resolve the problem. Both switches are on the same circuit to my kitchen, so I removed one Caseta switch, but the problem still occurred on the remaining switch. So now I've removed them both. Before I return them, I thought I would check here to see if I should try something else.