the inhelium k luminaire developed with led technology, offers the most high safety and performance features in emergency light. application: in the supports of the stairs of the wind towers. the operation of the luminaire is type sa that is, in the presence of voltage the luminaire does not operate in emergency mode. with 100 vac 277 vac supply. the lighting leds can be turned on / off with the manual switch. if yellow led is on and green led is off, batteryis loading if the green led is on and the yellow led is off, the battery is fully charged if the red led appears steadily, it means that the battery is under 90 minutes of autonomy and it would have to be changed. without100 vac power supply 277 vac the battery maintains the leds for lights switched on with lower intensity. the manual switch is not operational certificates ce, ul 1598 csa (e 362733 ul 924 csa (e 362874 rohs.