Relay for Arduino Uno

Hello Friends,

I need to control 4 device mentioned below

  1. RS Water heater 200 watt AC 220/240V 50-60Hz
  2. SOBO air pump 2.5 watt AC 220/240V 50/60Hz
  3. SOBO WP-850F filter 4Watt AC 220-240V
  4. Aquarium Bulb 15 watt AC 220/240V

using relay and arduino uno that I have please find the image in attachment for relay.

please guide me to make connection with arduion and relay.

Appreciate your help.

What sort of the chip is there? I can read only TOSHIBA ...3AP.
Is it ULN2803?

its Toshiba ULN2803APG

So, you'd expect to drive a High to an input to the ULN2803, and have the corresponding output go low to energize a coil & open the C-NC contact and close the C-NO contact.

Yes, using high voltage

I can on off my below
devices

  1. RS Water heater 200 watt AC 220/240V 50-60Hz
  2. SOBO air pump 2.5 watt AC 220/240V 50/60Hz
  3. SOBO WP-850F filter 4Watt AC 220-240V
  4. Aquarium Bulb 15 watt AC 220/240V