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Pro Very bright
While few other SmartBulbs get as bright as a regular 60 watt bulb, the Lifx gets even brighter. Instead of just using it for accent lighting, these smart bulbs are some of the only ones that can effectively be used as a primary lighting source.
Pro Simple setup
As soon as they are plugged in, the lights will turn on and start broadcasting a Wi-Fi signal. To pair it to your phone, just connect to that Wi-Fi signal. After you connect, you're done and can switch back to your home Wi-Fi.
Pro Third-party integrations
The bulbs can hook into the Nest Thermostat, Nest Smoke Detector, as well as IFTTT (If This Then That - a popular automation app based on 'recipes').
Pro Different bulb options
The Color 1000 comes in two variants - one is a compact A19 size, while the other is a BR30 size. The A19 produces 1055 lumens (equivalent to a 75W bulb), while the BR30 produces 970 lumens (equivalent to a 70W bulb).
Pro No hub required
The bulbs connect straight to the phone, meaning there's no need for a hub which reduces the upfront installation cost.
Con High brightness washes out colors
The colored RGB lights can only achieve 50% brightness on their own; after 50% white LEDs are also turned on to achieve a very high total brightness. However, mixing white light with colored light will dilute the colors so that red light at 70% brightness will look more washed out than red light at 50% brightness.
Con App lacks features
The app doesn't allow for light scheduling or custom color cycles.
Con Heavier, and warmer than other LED lights
To achieve their high brightness, the Lifx need more diodes than other LED bulbs, which means that they get hotter. To help deal with the heat, there are more heat sinks which adds the weight (they weigh 10.4 ounces each). Despite the heat sinks though, they still run a bit warmer than other LED bulbs.