Is DIY lighting covered by insurance?

[Myka]

I'm in the process of planning a new canopy for my tank. I'm wondering if my house burns down, and it's blamed on the lighting on the tank if my DIY procedures will null the insurance. Maybe I should get a "professional" to wire it? I know I could just phone the company, and they will probably say it's null if i do it, but what do you guys think?