·,,Warm white to cool white, 2700~6500K LED lighting ·,,Diagonal 30cm wide ceiling light for universal indoor use ·,,Works on 2.4GHz Wi-Fi, No Subscriptions, No Separate Hub needed ·,,Create schedules and interactions with other smart products ·,,Voice control by Amazon Alexa and Google Assistant is supported This is our R5111 Wi-Fi Smart Ceiling Light. Warm white to cool white,... choose the best colour temperature and light intensity to suit each moment. Choose the brightness you want, copy daylight lighting to stay focussed late at night or have a warm white lighting creating a cozy environment during dinner. Our R5111 smart ceiling light gives you full lighting options for every occasion.