I have no idea what the hardware version is, so chose highest V20. Question for tp-link, how would you expect a customer ot know what hardware version is in the device? 

My first HS200 only blinked orange. Yesterday I returned it back to Bestbuy and got a replacement. The new device also blinked orange only. My home is about 1500 sq ft cover with a Google Nest Mesh Wifi with 3 router points. My basement, backyard, and front yard all covered with very strong Wifi of 300 Mbps. The switch is installed inside the house between two router points. My Pixel phone placed next to the switch received full bars for signal.