Using an Arduino to control bright lights

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hi,

i'm working on small project , unsure best approach going forward be. basic idea arduino detects when person within distance it. if so, turn on bright lights , play audio clip.
i've gone ultrasonic sensor route , have got working open frameworks. since i'm beginner @ electronics , lights recommend?

many help!

you need settle on lights want use.  without knowing voltage(s),  current  and other characteristics of lights (on/off, flash,  dimmable, individual control)  there no way give advice. there shields allow 1 play audio sd card, wave shield 1 have seen.  no experience those, though.


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