Problem with Pro Tuning Labs...need suggestions

Long story shirt- ordered a pair of Eagle Eye Halos from Pro Tuning labs. The halo ring on the passenger side went bad. PTL sent me a new inverter.
The halo ring went bad again a few months later - PTL yet again, sent me a new inverter.

The halo ring on the passenger light continues to go from dim at times, to fully lit.

PTL has offered ZERO assistance so I wasted $300 and will have to purchase new lights as the light is not sold in a single unit.

Any recommendations on how to handle or a recommended after market light vendor?

 

Apparently I'm not the only one with this issue..another customer on TT advised he has the same issue. Why won't they offer to replace the light? Keep in mind, those inverters were sent to me while in the 90 day warranty period.

Why wasn't a new light offered instead of sending me a faulty product (inverter) 3x in a row?