SP4200 Flash Studio Kit Thank you for your purchase of the SP4200 Flash Softbox Studio kit. This manual has been written to help you with the assembly, operating procedures and accessories. Square Perfect's SP4200 Flash Kit is manufactured with the finest material available. Your flash kit will provide many years of quality service with proper care and handling. SP200 lamp body. 12' power cord. Please read this manual carefully before use, and keep it handy for use during break down of equipment.