LoRa LILYGO® TTGO LoRa32 V2.1_1.6 Version 915Mhz suitable for most places outside of Europe, check your countries regulation. ESP32 LoRa OLED 0.96 Inch SD Card Bluetooth WIFI Wireless Module ESP-32 SMA Power Output: +-14dBm Enough data for coms but not for lightning nodes

LoRa – Cyberpunk Hardware