As I mentioned in another thread (http://build.smartthings.com/forums/topic/ces-new-products-to-integrate/), I purchased TCP Connected Smart LED Kit for $49.88 at Home Depot.
The kit includes two 11W Smart LED light bulbs and an Ethernet gateway for connecting light bulbs to the local network (and Internet, if desired). Additional bulbs can be purchased for $16.97. The gateway can control up to 250 bulbs according to the manufacturer. There’s also a hand-held remote control available for $19.99.
Unlike other smart light systems, the TCP Smart LED bulb has a built-in dimmer that can be controlled over the radio link. This greatly simplifies installation because there’s no need to install wall dimmer switches. Also, it reduces cost since typical Z-Wave dimmer switch costs $40 - $50, not including the price of the bulb. With the LED bulb life expectancy of 15 to 20 years, this makes overall system cost significantly lower.
The build quality is very good, using high quality materials. The gateway is surprisingly small, just a tad bigger than the iPhone (although much thicker, 1-1/4"). It has three color status LEDs - power, LAN and Internet and a large button, presumably for pairing with light bulbs. The gateway came already paired with the both included light bulbs, so I just plugged it in and it was ready to go.
You control your light using free mobile app. I used iPhone version. The app is very intuitive and easy to use. Lights can be grouped into “rooms”, with each room appearing on a separate screen. You switch between rooms by swiping your finger left or right. Each light on the screen is represented by a tile with vertical slider. Pressing on a tile turns the light on or off, while dragging the slider changes its brightness. The slider is pretty small, but it’s possible to open a dedicated dimmer control window which occupies almost entire screen. The app allows you to create scenes and set schedules using either absolute time or sunrise/sunset time.
I’m impressed with ease of use of this system. No setup was necessary. Once I started the app, it discovered the gateway and the gateway discovered the light bulbs without me pressing any buttons or going through the menus, etc. I was up and running in less than two minutes. I just had to enter the name of the room and even that was optional.
Oh, and unlike SmartThings, the app connects to the gateway locally, so the bulb responds to commands almost immediately. You can control remotely it over Internet by setting up remote access account, but I have not explored that option yet.