| กกกกAfter absorbing
the sunlight or lamplight for ten to
twenty minutes,the photolumiescent fire-fighting
safety signs can give off light for
twelve hours on end.the products whose
life-span is over fifteen years hve
the virtues ofhigh luminosity, numerous
times of storage lightening, non-radioactivity,non-power
source, non-maintenance and easy-installation.The
reliability is close to 100 percent.
Once the electeicity is switched off
during fire alarm, all the photoluminescent
safety signs will send out light which
has the fuction of low illumination.Because
of their good pervasion through smoke
and fume, they can help people evacuate
from the dangerous areas and save themselves. |
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