... go on running under power off.(The system time just for reference can not be the standard of timing) 5. ... , light which operated in the open air very conveniently Technology and parameter data: 1. Power supply: AC220V ±10%, 50 HZ 2. ... restoration, oil filtering, waste oil disposal, oil reclaiming, waste oil management, energy saving, oil reconditioned, oil reconstituted, oil restituting, oil ...