TOPOLO solar street light is working with dimming mode, and it is combined with a smart controller and PIR motion sensor. It works out non-motion mode and motion mode. The non-motion mode is a low power consuming mode, it is activated at the mid of unnecessary bright period. And as long as there is motion detected, it will automaticly triggered to 100% bright mode. This is a perfect power balancing technology which increases the autonomy of solar street light.