008 - Uninterruptible Power for Haunts
Uninterruptible power supplies are normally seen in server rooms and for mission-critical government and public safety equipment. They also have several uses in keeping your haunted attraction up and running with 0 downtime in the event of a quick power failure or brownout. They will only run a limited amount of electronics for a limited time but can keep your registers, credit card machines, security cameras, media players, phones, and controllers up and running in the event of a power interruption.
Here is a video review of a 600VA consumer grade model we have used with success in the past: https://youtu.be/UfZQ018JzAM
It is Free