NEW! COVID-19 Products
These 5" w x 5-1/4" h (12.7 x 13.3 cm) glow in the dark self-adhesive signs will glow for up to 8 hours after darkness occurs but are very visible in normal lighting. Cycling from light to darkness does not wear out the sign (permanent renewable fluorescence).
The mounting surface must be clean, dry smooth and non-porous. For porous materials such as brick or cement block a third party adhesive may be necessary.