This is NOT just a red light, this is a real spotlight, it will light up street signs a half a mile ahead after dark. Vintage rare glass bulb, no longer available. Set up now to light up when plugged into 12 volt cigarette or other 12v socket. It had a simple on/off sliding switch, can easily be changed to that. Clint hung it from the rear view mirror in a San Francisco hot pursuit scene.
I leave it hung on the mirror entering large sporting or other events, they see you as an unmarked police car and wave you through to deluxe parking. You needn't even turn it on, effective.
I tried to how nighttime range, one shot 50 yards, the long shot 1/4 mile lights up stuff.