I bought this 20W kit on Aug 12, 2021. It lasted 9 months, then the charge controller failed… the status lights stayed dark.While the suction cups suck, I was happy with the job it did and was willing to buy a replacement 9 months later.So, I bought a new 20W kit on May 30, 2022.Same poor quality suction cups.The new kit performed great, just like the first kit. But, by Sep 24, 2022, the new kit failed as well… exactly like the first kit… but, after ONLY about 4 months.I’m very dissatisfied withSee full review