emergency telephone IMO SIGNS emergency telephone 150x150mm
Glow in the dark for more than 12hours after absorbing visible light 15mins
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Photoluminescent self -adhesive film |
150mm | 150mm | $0.92/pc |
10mins luminance:>90mcd/m2
Afterglow time(0.3mcd/m2):1390mins that is about 23 hours