S30, S60 and S120 can be powered by battery. The SkyPanel S60 and S120 draw half the power when using a battery adapter instead of a power supply unit. The maximum brightness is lower with the battery adapter compared to using a power supply unit. The S360 cannot be powered by battery. It uses a higher voltage and has a much higher power consumption than other SkyPanels. It's therefore not as flexible as them but much more powerful.