The GL25WEMBACKUPOKN0X is for use with an LED load up to 25W at a rated voltage of 18V-48V. Dial the code to suitable rated voltage of luminaire. Long life high temperature recyclable Ni-Cad battery. Includes test switch and charge indicator accessory kit. For use with switched or unswitched fixtures. Meets or exceeds all National Electrical Code and Life Safety Code Emergency Lighting.