The PL2500 is the top of the line of the PL-2 Series of Photogenic PowerLights.
All "DR" and Solair constant color models are now available with 32 channel radio technology that wirelessly trigger your strobes. You can use multiple lights in the studio and on location and never worry about your lights being triggered by another photographer's flash. It's easy. Just set the radio PowerLight® to one of 32 channels on the Pocket Wizard transmitter. The built in radio receiver never needs batteries.