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  1. K

    Using a laptop power supply for circuit requiring less current.

    I thought that was probably the case Thanks for that:)
  2. K

    Using a laptop power supply for circuit requiring less current.

    Hi, I'm making a small fishtank hood using LEDs, the LEDs are to be powered using Buckpuck drivers, these in turn need to be powered. I need to supply 20V at 1.4A Does anyone know if i could use a laptop power supply rated at 20V, 2A.DC i.e will the circuits only draw the current needed or...
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