re: design notes
@rey When you say "half light if V+ applied and half if V- applied" do you mean that you have two separate inputs, V+ and V-, that separately control two halves of the strip, or that applying positive voltage lights half of them and negative the other half (implying you can't light both halves at once)? Either way thi sis a simple problem and i can get a circuit for you quickly, just need to know!
-F