It is an SLA-05VDC-SL-A 4Pin 30A Power Relay. The relay is switched with the help of a small signal from a microcontroller like an Arduino. This relay can be used to drive 30A devices.
Specifications:
- Operating Voltage (VDC): 5
- Supply Current (A): 0.185
- Operating Temperature (°C): -25 to 70
- Opt. Relative Humidity(RH): 45% ~ 85%
- Storage condition (℃): -25 to 70
- Length (mm): 26.85
- Width (mm): 31.6
- Height (mm): 19.5
- Weight (gm): 24
Package Includes:
- 1 x SLA-05VDC-SL-A 4Pin 30A Power Relay

TTP224 4-Channel Capacitive Touch Switch Sensor Module
PAM8403 Mini 5V Audio Amplifier Board with Switch Potentiometer
5V Dual Channel Relay Module with Optocoupler Isolation
TTP229 4x4 Capacitive Touch Keypad Module 16 Channel
12V 16 Channel Optocoupler Relay Board Module LM2576 Power Supply
SD4938TR Switching Voltage Regulators Silan SOP-8
Active Buzzer Alarm Module DC 3.3-5V 








Ranjan SEN –
Product is so good as aspected.
Ranjan SEN –
Very good product