The gro light a simple adaptor that fits easily to your normal overhead light or bedside lamp and fills your babys room with a comforting soft glow when you flick the light switch once flick the switch twice and youve got your usual main light back one click to turn on the night light two clicks to turn on the main light adjustable brightness edison e27 fitting can be used in standard overhead or standard lamps easy to install simply use with a normal light fitting easy to use control vi