simultanously

  1. int86

    Cabinet Mod . . . . .LED

    I would like to light 4 LED in series(12V). It is easy to draw its power from SMPS. But i would like to lit it only when hard disk light is on. But its poweq will not come fr HD light. is there any electronics that will just send on/signals. The light should work simultanously. Please no use of...
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