yup that’s true, i usually do my work with 5VDC , but i will switch to a Darlington transistor if i need to work with 3.3VDC in the future, thank you for the advise. 👍

for 240V AC this relay can handle 5 Amps

forgot to include this

yeah sure

I already added solder to the relay contact tracks to increase it’s thickness

those are for the low voltage control pins for a gpio (to control the transistor and the supply +5v and GND)