Hi All.I am trying to put a circuit together and could use some help.I am new to projects,but have some expierience with pcb s on boilers as i am a gas engineer.The first part of the circuit i need help with is how to reduce 240vac to 12vdc to power a latching relay and then i further need to reduce 12vdc to 3vdc to power a dual colour led.Space is limited.The whole circuit has to fit in a 1 gang x25mm deep box',inc relays. Thanks in advance,tony.