Sascha,
i currently use 4 of the the MiLight LED bulbs. They are really cheap but have some limitations:
- as far as i know, you can only use up to 4 RGBW bulbs on one wifi bridge
- there seem to be some incompatibilities between different versions of them: i added one bulb later to my system and it always switches itself off after ~1 minute. I don't know why this is happening, but its pretty annoying.
- you cannot poll their current state
- depending on your environment, they are unreliable. Often commands just get lost, as there is no acknowledge. This gets really annyoning when you want to activate a light scene, and some of the bulbs just don't react. In some cases it can be worked around by periodically resending a command from by rule, but not always.
These limitations frustated me more and more, this is why i am now moving to the hue systems, despite their heavy pricetag. I hope thoses work better.
MiLight bulbs are nonetheless great toys for playing around and trying out things or for illuminating your party or your garden.
Rainer