Spotlight: Mood Light for Android oozes colorful lighting out of your smartphone screen2
According to the dev, Mood Light literally, uhmm, shines as a limited substitute for an off-the-shelf glow light, chakra light, lava lamp, glow stick, meditation light, or baby night light. Of course, such versatility isn't accomplished by virtue of fancy colors alone! The application comes with built-in relaxing ambience (rain, camp fire, playground and such) for meditation or general leisure activities, and is complete with a bunch of controls that almost feel like operating a gadget. You can select ambient music tracks (it's psychedelic stuff like arps and organs), pause the light show on a color of your choice, adjust the speed of lighting, or use a timer feature to shut down the light automatically.
Although Mood Light is no replacement for a proper night lamp like the Xiaomi Yeelight, it can provide some good times if you smartphone has a sufficiently big and bright screen. Try it out for free and see if you think splurging on the additional light effects will be of any use to you.