light source white, yellow, or blue in color round or rectangular shape a single bulb or multiple bulbs a power cord or battery pack a switch or dimmer a mount to support the source
source which has light source source which has white, yellow, or blue in color source which has round or rectangular shape source which is a single bulb or multiple bulbs source which is a power cord or battery pack source which is a switch or dimmer source which is a mount to support the source