TCS are Critical Power Specialists specializing in UPS System Preventative Maintenance, Emergency Lighting Inverters, Standby Generators. TCS is your single source for all power protection. For over 28 years we have provided Southern California (Irvine, Long Beach, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara and Ventura) with our expert knowledge in sales, service, full turnkey installations and preventative maintenance contracts. We feel it is essential to build trusting relationships with our customers — not just in providing competitive pricing, but also in knowing that we will anticipate your every need. We are dedicated to helping our customers in every aspect of Critical Emergency and Standby Power needs. Emergency Lighting Inverters We are a multi-vendor specialist, and provide Sales, Service, Preventative Maintenance and Turnkey Installation Solutions to all makes and models of Emergency Lighting Inverters. See more services on our website.