REX3LF26 is a Zigbee lighting dedicated module developed by REXENSE. A small and cost-effective module composed of a domestically produced Fengjia PHY6226 chip and a small number of peripheral devices. The module is equipped with a 32-bit ARMCortex MO MCU, 64KB SRAM, integrated with 1024KB Flash, and provides 3-channel PWM. The module can still communicate stably in a high-temperature working environment of 105 ℃.