The Wi-Fi bulb is another addition in Merlin's expanding Smart Home series. The Wi-Fi bulb can be controlled from a dedicated app, available on iPhone and Android. Through the app the bulb can be changed to 16 million colors, with the added option of setting presets. Two preset tones of 'warm' and 'cool' are preloaded, however other presets according to mood or environment can be set hassle-free