Shudyear Car Solar Power Simulated Dummy Alarm，Anti-Theft LED Flashing Security Light Fake lamp，with USB Charger Port，car security Accessories Universal for Most Cars(2pcs Red)

Nice little gadget..sometimes not as visible as we would like it to be

They are a great value for the money. They can be charged with a charging cord, and they also have a solar panel on them to charge while in the sun. They stay off in the daytime, but come on at night. They flash a bright blue and people will think it's a real alarm system in your car.

Work really well it doesn't flash quite as fast as I would like but it work .

Eh... for the price I guess it's okay. Being in the car business I always tell my clients that in order to help ensure that your car isn't stolen, make it as unattractive as possible. I recently took my classic car to a large multi-day event where we parked in a well-lit hotel lot. I pulled the coil wire, locked the clutch pedal to the steering wheel and figured I'd try a blinking LED light just for an extra effect. I bought this and stuff that under the dash so it wasn't obvious where the light was coming from. First thing I didn't care for is that the blinking is pretty slow, only Illuminating every few seconds. I would have to be every second or so. It also wasn't quite as bright as I hoped but it was decent enough for night time but in the daylight it is too weak. Also I really doubt these are solar powered. I had to plug them in to a 12 volt source to charge them up because they just simply did not seem to hold enough charge by leaving them out in the sunlight. I've only really use these for a few nights straight and will maybe take one apart to see if there is actually a solar panel in these or not.

Second time I've bought them first set lasted over a year good good value for the price