This portable toolbox light is a one bulb system with the power of a Mega Brite Underwater System. This portable toolbox produces 28,000 lumens and includes a protective cage for the bulb.  It is portable for you to take anywhere you have a plug or generator available. Note: This unit runs off of 110v power. To use a 12v battery, it must be used in conjunction with an approved 1000 w inverter.