See those warning marks on the middle screen? I'm not sure what they do, but this is where I'd put them, along with a small text "this bulb is not supported by Philips and may not work properly", and people wouldn't miss it. It would be a constant reminder for them that if something breaks with one of those bulbs, it's their fault.
http://www.geek.com/wp-content/uploads/2014/01/Hue.png
See those warning marks on the middle screen? I'm not sure what they do, but this is where I'd put them, along with a small text "this bulb is not supported by Philips and may not work properly", and people wouldn't miss it. It would be a constant reminder for them that if something breaks with one of those bulbs, it's their fault.