What I really wanted were bulbs that BOTH change brightness and change temperature (Kelvin). During the day, when my living room serves as an office, I like it light or all white. During the day I like it when it gets warmer, lower on the Kelvin scale. These are the third bulbs I've tried and the only ones I've found that can meet my needs. It does a lot of other fun and interesting things, but I mostly just use it in white light format. No problem connecting them and the app is very user-friendly. I have a 13W and it's definitely bright enough - and I like it bright.
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