Medical Operation Lighting Equipment provide lighting in surgical suites and are designed to illuminate the surgical site for optimal visualization of small, low-contrast objects at varying depths in incisions and body cavities. The trainer is designed to demonstrate the operation, theory, repair and servicing of Medical Operation Lighting Equpiment that used at clinics & hospitals. The unit given the fault diagnosis so as to facilitate the teaching of trouble shooting techniques. A fault simulator is provided with circuit block diagram of the device for the students to study theoretically and experimentally in order to understand the operation of the device.