Playbulb Garden is a wireless solar garden lamp which can be controlled by a smartphone. A free app allows users to switch the lamp on and off, or to control the brightness. In addition, there is a variety of RGBW colours and light effects to choose from as well as a timer function. The group control function allows users to control any number of Playbulbs via only one mobile device. Supplementing the solar energy, a 1,000 mAh battery lengthens the possible operating time. The garden lamp is adjustable in height by stacking either one or two holders on top of each other.