4-Channel 5V Relay Board TP4056 1A Li-Ion Battery Charging Protection Module eliminate drafts and air circulation

eliminate drafts and air circulation near the printer

and 60W soldering irons

Learning & Education: Great for students exploring Raspberry Pi programming

and enclosures that allow visibility of internal components while maintaining structural integrity

Anti-Reverse Polarity Design: Keyed male and female housings physically prevent incorrect mating

4-Channel 5V Relay Board TP4056 1A Li-Ion Battery Charging Protection Module eliminate drafts and air circulation```html 4 Channel 5V Relay Board Control up to four high power devices independently using any 5V microcontroller with this optocoupler isolated 4 channel relay module from The Engineer Store, Bengaluru. Fast shipping, 7 day warranty on manufacturing defects, and dedicated technical support. Specifications Relay Channels 4 (independently controlled) Signal Voltage 5V DC (active low trigger) Coil Voltage 5V DC Contact Rating 10A @ 250V AC 10A @ 30V DC