Heck, take a regular florescent light and hold it next to a CB antenna and key the mic.
I know, I once talked to someone who went to medical school in Mexico. They lived under the shadow of a 100kW AM station and when they need light, they brought out a few florescent bulbs from the closet and the station lit them up very bright and they studied that way. To “turn them off,” they put them back in the closet. That’s one way to save on the light bill. B-)