Tigo TS4-A-O is a retrofit panel optimiser great for partly shaded installations. The shaded panels will be boosted with the optimisers to enhance the overall output.
You can also use the modules for cases where you have mis-matched panels. SO long as you follow the 25% rule, panels can not be more than 25% different in a string of mismatched panels. A good example is adding 330Watt panels to a group of 300Watt panels. Normally this would not be possible but with Tigo modules added to each panel you will get great results.
Tigo can also be added to an array in perfect conditions, you will get a noticeable increase in array performance.
Tigo modules do not need a monitoring or control mechanism, simply retrofit to all your panels for maximum performance.