When comparing Ilumi vs GE Link, the Slant community recommends Ilumi for most people. In the question“What are the best smart bulbs?” Ilumi is ranked 8th while GE Link is ranked 14th. The most important reason people chose Ilumi is:
There are 3 bulbs that are part of Ilumi's lineup - the regular A19 LED bulb which replaces a regular 60-watt bulb, BR30 Flood LED bulb which offers more light ideal for track or recessed lighting, as well as an Outdoor Flood LED which is similar to the indoor flood light, but it has been treated to be weatherproof.
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Pros
Pro Different bulbs available
There are 3 bulbs that are part of Ilumi's lineup - the regular A19 LED bulb which replaces a regular 60-watt bulb, BR30 Flood LED bulb which offers more light ideal for track or recessed lighting, as well as an Outdoor Flood LED which is similar to the indoor flood light, but it has been treated to be weatherproof.
Pro Selective integration
The Ilumi works with Google's Nest Thermostat as well as IFTTT (If This Then That - an app and web service that lets you automate actions based on variables...it works like coding, without needing to know how to code). This allows for cool things like flashing the bulbs when you receive a call or text, turning on the bulbs when they sense your phone is near, etc.
Ilumi is also planning on opening its software to developers in the near future, allowing for even more unique uses, however that hasn't happened yet.
Pro No central hub needed
Each bulb hooks directly up with your smartphone, removing the need for any central hub.
Pro Easy lighting management
Once you get the Wink App working, controls for the bulbs are simple. Whether you are modifying one bulb at a time, or grouping them to adjust many all at once, the controls are simple and work fairly well. Automating bulbs is just as easy - from basic scheduling (turn on in the morning, off when you go to bed for example) to recognizing when your phone is near and turn on by themselves.
If you want to go deeper, you can use the Robots feature, which allows you to craft your own automation recipe and dip into external triggers.
Pro Great color range
These bulbs can manage to display 90% of the color index - more than any current RGB LED bulb. It scores very well in all colors, expect pure red (about 60%) and pure blue (about 74%). Different shades of these colors all perform well.
Pro Compatible with many products
The GE Link is part of Wink's smart home platform standard, and are compatible with other products that utilize Wink (Honeywell, Dropcam, Philips Hue and more).
Cons
Con Limited to bluetooth range
The Ilumi bulbs only use bluetooth (no WiFi), but they work together through a mesh network so that if you are within bluetooth range of one of them, you are in range with all of them. Range is said to be about 150 feet away from the outermost bulb.
Con Slow response
Two headlining features of the Ilumi are slow to react - Music Sync should change the color of the bulbs along with any music that is playing, however it lags behind and doesn't respond well. The same can be said for the Torch Mode which is supposed to turn on your lights when it senses your phone is near.
Con Very expensive
$60 per bulb is very expensive, even for smart bulbs. They are energy efficient, and also rated up to 20 years of lifetime which can help justify the cost a bit.
Con Buggy software
Between installing, registering, and connecting, the setup process is very slow and buggy. Even once connected, changing the colors or settings takes longer and appears more choppy than competing bulbs.
Updates can fail to install properly multiple times in a row (even with restarting your phone and unscrewing the bulbs).
Con Hub required
To access any smart features, you will require a hub. There are different hubs available, with more to come. Currently there is the Link Hub ($30) which will handle lighting, or the Wink Hub ($50) will be able to work the lights as well as other smart home systems. There's also the coming-soon Wink Relay ($300) which will have a touchscreen and act as a wall mounted smart hub.
Con Inefficient compared to other RGB bulbs
The GE Link requires 12 watts to produce 800 lumens - the TCP LEDs and Belkin WeMo provide the same lumens at 11 watts and 9.5 watts, respectively, and the Philips Hue provides 750 lumens using only 9 watts.
The GE Link is one of the most inefficient RGB LEDs available, however it is still many times more efficient than incandescent bulbs.
Con Limited dimming
While other Smart LED bulbs can dim right down to 0.5% of their total brightness, the GE Link will only go down to 10.2% brightness before it turns off. While this is still fairly dim, it would be nice to have an even larger range to make transitioning to bedtime more effective.
