K4 signage series uses OLED technology, a variation on LEDs based on organic materials. The result is perfectly illuminated signage in a super slim and discreet design. Since light source and sign form a unit, the luminaire’s dimensions have been substantially reduced, resulting in a mere 4-mm thick signage plate. K4 is available as a recessed luminaire, as well for wall and ceiling mounting, and always works in combination with the EBS Compact central battery system.