Lights protect poultry at night. Nite Guard Solar uses sunlight or daylight to charge. No batteries are ever needed. It will continue to activate during long periods of cloudiness.
Pros: No batteries or electricity needed
Easy to Use
Cons: Expensive
While this is a bit pricey, I really like the product. We have gone through a time period where we are not getting a lot of sun, but, they are still working well. We have them on the corners of the runs at about 2 1/2 feet up. They blink pretty brightly all night long.