solartek fronted by a crook named brant patton who at one time resided around Summerville, sc has these very high pressure sales presentations where they push a power optimizer. not only did this device not perform, I had it examined by a very educated and experienced electrical engineer who informed me that there is no way this device will ever optimize power use not alone save electricity. the device malfunctioned and almost caused my house to catch fire and when I tried to contact the company, no response. I tried numerous times to contact the company and was told at one time that they were out of business. if you look them up on the internet they have a website pushing now solar energy panels, an even bigger scam.