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90 Minute UL 924 Systems

LIS only works with UL 924 tested and certified systems, providing you with the industry’s highest capacity and efficiency systems. 90-minute lighting inverter systems for emergency lighting needs provide industry-wide solutions for the current UL 924 standard. Article 700 or 701 of the National Electrical Code, NFPA 70, the Life Safety Code, NFPA 101, the Fire Code, NFPA 1, the International Building Code, IBC, and the International Fire Code, IFC.

30 Minute plus Generator

Should you wish to outsource your project as a turn-key process. Our team can manage the entire installation of the Inverter System to startup. Our team can work with your internal teams or approved electricians. We also may provide our own preferred contractors to estimate the installation. Our team will estimate the rigging, electrical, site restrictions and all the variables around putting the properly sized system into your facility. This proposal will include everything to Inverter Startup.

Lighting Inverter Sizing

Members of our team are available to assist in the system selection process. You may provide a specification for us to review with you. You may need a walkthrough with an Electrical contact either provided by us or your own. We will assist every step of the way. Sizing review, voltage selection, Battery Runtime options are all important variables in the selection process. Proper documentation of System manuals and technical information are an integral part of the process so that the installation technician or contractor can properly plan and estimate the project.


Battery Maintenance and Emergency Service options are available through our Critical Services Division. We can provide you with documentation for your service plan that perfectly fits your requirements. Care is taken so that every site receives the Service Level attention required for optimal operation and maintenance of certification standards. 7 x 24 NOC Services are available for 100% customer service availability.