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Relays

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chug

Member
Joined
Jan 18, 2013
I have a 5v psu to a 5v screen, 2a. but the trigger is 12v.

Can I use a normal 12v 4 pin relay?
 
A 12V relay with contacts rated for at least 2 amps can handle the load, but its coil will require about 12V to activate those contacts.

What's a "screen"?
What's the "trigger"?
 
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