All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
The working voltage of the module: DC 5V; Relay load capacity: 10A 250VAC 10A 125VAC 10A 30VDC 10A 28VDC
The module supports the 802.11b/g/n standard, which allows the device to connect to a wireless network
The module sizes: 38mm*26mm*18mm/1.50in*1.02in*0.71in, with a compact design, suitable for space-constrained applications
The module communicates via serial port and can be configured and controlled using AT commands
The module has low power consumption characteristics and is suitable for long-running applications; Easy to configure and apply, with many development resources and sample code available
Description
Name:ESP8266 ESP-01S with relay module
Size: 38mm*26mm*18mm/1.50in*1.02in*0.71in
Weight: 17g/0.6oz
Introduction: ESP-01S is a ESP8266Q chip-based WiFi module, which provides a low-cost, low-power and highly integrated solution for IoT and embedded applications.
Interface Description: GND: grounded
I02:GPIO2/UART1_TXD
I00:GPIO0; Download Mode: External Pull Low; Operating mode: suspended or externally pulled
RXD:UART0_RXD/GPIO3
TXD:UART0_TXD/GPIO1
EN: Chip-enabled end, active high
RST: Reset
VCC: 3.3V Power Supply (VDD); The output current of the external power supply is recommended to be more than 500mA