WISLIFE 24 Hour Video Surveillance Sign - This Area Under Video Surveillance Sign, ONE Piece, Glow in The Dark No Trespassing Video Surveillance Sign, 12" X 12" (ONLY 1, Day & Night as Picture);

Long Afterglow Luminescent Material
The long afterglow of rare earth (Photoluminescent material, RE STORING luminous materials, long-lasting luminous powder) is a widely used inorganic materials, with a strong light absorption-STORING-luminous ability, by absorbing ultraviolet light or visible light, so that light energy conversion after storage in the lattice, but also in the dark energy into light energy and light.
Please NOTE the material may not glow as bright as LED lights, but we can assure you the warning sign will be noticeable at night.
Glow at Night
Unlike traditional fluorescent material, unstable in performance, short-time lighting, insufficient luminous intensity. The home security signs adopt this new material, after absorbing the light for about 10 minutes, the white part starts to glow. Please note that luminous intensity still weakens gradually due to its physical property.
Safer Live
While having cameras might help you investigate any crimes against your property, it's still a better idea to prevent them from happening. The security signs work both day and night. With its well-recognizable look and glow-at-night feature, even at night, robbers will know your property is under surveillance.You can place adt security yard sign in/out your house, pasture, and your garden, or in your store/office.
Professional Look
The more professional your sign looks, the more it will scare away bad guys. The no trespassing signs are using 12" x 12" octagon shape, thick, sturdy, rust-free aluminum plate, with 2 pre-drilled holes, they look as if they belong to governmental institution. Burglars will think twice before stepping into your property.
Long Lifespan
These security signs are UV & weather resistant, waterproof and dust-proof. Through special outdoor processing, we can ensure you the yard signs can work inside/outside for 7 years or more, no worrying about the words will fade.