Welcome to The EFI Ameren Missouri Product Offer

home banner

Change a
Light Bulb


Act now! These specially priced bulbs will only be available for purchase through December 15, 2015.


Ameren Missouri is offering several unique residential programs to help customers use less and spend less on energy. Through this EFI online store, you may order specially priced LED (light emitting diode) and compact fluorescent light bulbs (CFLs) to meet a variety of lighting needs in and around your home, as well as advanced power strips that can help insure that peripherals used in home offices or home entertainment systems do not continue to use electricity when not needed.