This solar LED Bulb is attached with overcharging/over-discharging lithium battery which automatically stop charging while complete charging and stop discharging while the voltage is below 2.4V.
Two ways of Charging: Solar panel or home electricity charging.
Non-touching magnetic induction control switch: Switching “off” and adjusting brightness levels are relying on rotating the black PVC circle which can trigger lighting while the back convex mark aims at the figures “1” “2” “3”.
This solar LED Bulb completely separate inside space from outside space, not only have waterproof IP68 function, but also can protect explosion from flammable and combustible gas condition.
The indicator light turn red and flickering during charging and stop flickering in fully charged condition. When the bulb discharges its power to electronic products(such as Smartphone, ipad etc),the indicator light will turn green, but not be flickering.