In this system test, a “storm” hits my house and I loose power. But two of my fire alarm demo systems have battery backup and continue to function. I test both systems and show off the devices I have installed while working through the challenge of my room being dark. This was a fun video to make and I hope you enjoy it! Check out my Instagram! https://www.instagram.com/exitsign250/?hl=en Want to see more videos? Visit my second channel! https://www.youtube.com/channel/UCblGPwYTBps1C7On-Aqjfhw ©️ExitSign250 - - Do not use any content featured without permission.