They charge the lights from the surrounding natural or ambient light and then glow in dark for many hours.
It is at least 15 years when installed indoor.
5.Can the photoluminescent signs be used outdoor?
Yes,but just the ones made with metals carrier(aluminum and stainless steel) can be used outdoor,because there is a layer of protection varnish on the top of Yeming's metal photoluminescent signs,
6. why should you buy from us not from other suppliers?
1)There is a team of employee with enriched expericence and high technology,can made to order in a huge range of styles, thicknesses and specifications;
2)The quality of our photoluminescent signs are extremely stable,because the main materials like photoluminescent pigments,photoluminescent rigid PVC sheets etc. are produced by ourselves;
3)Our prices are competitive;