Morningstar Tristar 60A PWM Solar Charge Controller (TS-60M) - Solar Panel Regulator w/ Meter for 12/24/36/48V LA/Li Batteries, Load/Diversion Control, Data/Comms, FCC comp. 5 Yr. WTY, Designed in USA

Works as it should

I see many people giving this product poor reviews, and even more people rating those reviews as "Helpful". Let me just say, they are wrong! DO YOUR OWN RESEARCH! This is the most reliable, long lasting solar controller on the market. If you are not technically inclined, this product is NOT for you.I purchased a 60 Amp PWM model with display from Amazon Warehouse in March 2021 (17 Months ago), and I LOVE IT! This is a true workhorse, it will make reliable power for many, many years. If you configure it CORRECTLY! The display will only get you so far programing the settings. If you want to maximize your array production, or use it to charge a Lithium battery bank, you will REQUIRE an RSC 1, RS-232 adapter, I bought a cheap serial to USB, and modified it slightly to fit. You will also need a computer with Windows, and Internet access, so you can UPDATE THE SOFTWARE/FIRMWARE ON THE CONTROLLER! Some of these units may have been on the shelf for a while, so if you want the latest features, you will need the latest Firmware version.Spend the extra cash for the display. Even if you plan to monitor the system via network, the display is still very useful during initial set-up, and troubleshooting.Do NOT expect it to work out of the box, unless your system as primitive, and rudimentary. If you decide to forgo the Com adapter and display options, you will have problems. If you neglect to update the Firmware, you will most likely have problems.If you are thinking about purchasing this incredible product, but lack the simple technical skills to configure it, you should look elsewhere, and probably just stick to Grid Power.YOU HAVE BEEN WARNED!DO NOT BLAME THIS AMAZING PRODUCT FOR YOUR OWN IGNORANCE!!!

Controlling Off-Grid solar array.