I'm interested in the "By the Foot" strip lights and am wondering if I can use a store-bought power supply for it rather than the keypad controller. My father has a slide-out computer keyboard and I plan to surface-mount the light in the narrow space above it with double stick tape, with nothing more elaborate than an "On/Off" switch (or plug-in/unplug option). I only need white light - it's not going to be changing colors and the length is only as wide (long) as a standard computer keyboard, so no more than about 18". I want to keep it as simple as possible, so he can operate it (he's almost 93 and the advertised keypad would only confuse him). Thanks!