How to easily install exit signs for JREEL1RC ？

*Aluminum housing with high grade acrylic panel:Single clear printing. *Compatible with drywall or drop ceiling mount installations. *Bar hangers included. *Single face,6" clear acrylic panel,with silver or white Mylar. *Removable directional indicators. *120V~277VAC dual voltage operation *Super bright red LED lamps. *Buit-in 3.6V 500mAh Ni-MH battery for minimum 90 minutes emergency operation. *Maximum 24 hours for full recharge time *Test switch and charge indicator *Removable front cover for easy installation and battery maintenance. *UL and cUL(Canada) listed *0℃ to 40℃ indoor damp location listed

• #science_technology
• #emergency_light
• #exit_sign
• #ul_led_emergency_exit_sign
• #feiuo_emergency_light