Backfill · 2022
#208 of 357Home Automation Light Scenes
Screenshot: a smart home app interface showing light scene controls with color temperature sliders, room groupings, and schedule settings, a warm-lit living room visible in the app preview.
Smart light bulbs in my apartment are set up with scenes that change the color temperature and brightness based on time of day, warm and dim in the evening, bright and cool during study hours. Automated transitions have changed how the apartment feels without requiring any conscious effort from me. Bulbs connect to a hub that runs scheduled scenes. Setup took about an hour of initial configuration, assigning each bulb to a room, setting the schedules, and adjusting the brightness levels until they felt right. Color temperature shifts from 4000K during the day to 2700K in the evening, mimicking the natural light cycle that our circadian rhythms are calibrated for. Transition happens gradually over about 30 minutes so it's imperceptible unless you are watching for it. System also responds to voice commands and phone shortcuts. Saying a phrase that shifts the entire apartment to movie mode, dim lights with a warm bias, is a small convenience that disproportionately improves the experience of living here. At about $150 for 6 bulbs and a hub, bulbs last about 25,000 hours, which at 8 hours per day is roughly 8 years. Setup has made me notice how much the quality of light affects mood and productivity. The difference between a harsh overhead fluorescent and a calibrated warm glow is significant enough that I don't think I can go back to single-temperature fixed lighting. Interface for creating custom scenes is straightforward if you have used any app with sliders and color pickers. Default scenes that come pre-configured cover most situations well enough that I rarely customize beyond the initial setup.