This is a replacement frosted, incandescent 100W/230V modeling light bulb for Acute-AB, PAB, ComPact, ComPact Plus monolights. It has a standard E27 medium screw base. Its long neck clears the flashtube. Use it with 230 line voltage only.
WARNING: This is a "European Voltage" product and CANNOT be used in the USA. It is designed for use overseas.