Profile: Claude Lyons Ltd. manufactures and supplies voltage stabilizers and UPS systems. We are accredited to BS EN ISO 9001:2000 quality standard. Some of our other products include harmonic mitigation products, fixed and variable transformers, power resistors & rheostats. Our series TS range of servo-mechanical voltage stabilizers are often specified for communications and medical electronic applications. The UPS systems we provide help to curb AC mains power conditioning problems and power failure issues. We supply on-line, off-line and line-interactive models, and single or three phase kinds of UPS systems. They consist of a wide range of autonomy backup times and software options. Our variable transformer is an electrical control device providing stepless and undistorted variation of AC voltage, and of dependent parameters such as current, heat, motor speed, and light intensity.