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Transistor help Answered

I got a 5M LED Light Strip.
Its controller say it needs 12V 2A but each LED uses 20mA each and there are 300 in this strip which = 6A.
I want to cut this strip into 4 segments and power each one using an arduino.

1 strip = 2.1A
2 strip = 1.26A
3 strip = 1.5A
4 strip = 1.14A

My question is do I need different transistors for each strip because of the difference in amperage or can I use the same one? If so, which one!?

Thanks for your attentions.



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8 years ago

Use the same transistor, use something like the IRL 540 would be a good choice