Review on TWSOUL Monocrystalline Controller Batteries Alternative by Tyler Markham

Arrived dead on arrival. NO LED display. Reconnected another 30 watt panel and charge controller and I immediately see 12.8 volts on the LED. I don't know what the problem is, but red to red, black to black. Nothing. Refund and request for free shipping again. We'll see if the next one works. The SECOND panel arrived in 2 days, great but this one also shows NO LED readings when connected exactly as advertised and is identical to my other 30 watt panel which works fine. If that doesn't work, I'll switch to another brand.