Brady offers many different exit/directional signs including bradyglo framed and frameless exit signs which are immediately visible in emergency situations Brady's safety signs use internationally reported pictograms and help promote greater communication of safety messages Brady B-324 is a non-toxic, non-radioactive, explosion safe (does not generate energy to induce explosions) material allowing for sanitary disposal Charge time of 5 minutes at 1000 lux will charge the sign for (plus 10) hours of glow time Consistent glow life and unlimited rechargability throughout service life, not recommended for outdoor application