The ProMaster 2 Light AC Softbox Kit XL provides bright, soft illumination for your photography and videography. Four E26 / E27 sockets in each light head are compatible withh photographic LED and CFL Edison-style lamps. The heads are extra-large to accept big lamps or small. Using toggle switches on each light you can switch each lamp on or off independently of the others. The large softboxes (included) mount directly to each light head (no speed rings necessary). An integrated tilting bracket and handle on each light head makes it easy to direct, and a center slot accepts a photographic umbrella (sold separately) for illuminating large groups. * Photographic lamps sold separately. This product is designed for use with LED and CFL type lamps. Be sure the lamp you use is within the wattage and heat range specified.