Features:Especially applicable for dark light application.Backlit with multicolor option is possible.Backlit with El Layer provide uniform light distribution but require additional control circuits.Backlit with Self illuminated mechanical switches.Front Overlay design and color combination can be made as per customers' requirements.Illuminated Keyboards can be made as per customers specifications and requirements in any size and shape. Common Features:Pcb : Glass Epoxy PCB FR4 Grade in thickness ranging from 0.4 mm to 3.2 mm ( Tin & Gold Plating ).Overlays: Polycarbonate - Lexan; Polyester - AutotexLeds: All kind of Leds with various colors and shapes i.e. Through hole (Dia 3mm to 10 mm) & SMD (1206, 0805, and 0603).Connector: Berg strips, FRC, Relimate, D Type, SMD etc.Adhesives: Industrial Grade from 3M, Avery Dennision.ESD & EMI protection.IP Protection: IP 54 & IP 67. Specification:Key type : SPST normally open.Key Life : 1-3 Million.Operating current & voltage : 20mA 24V.Operating Temperature : -10 to 70 deg centigrade.