This ink is silkscreened under the graphic overlay. When exposed to a light source, it stores energy that it uses to glow in the dark. This lighting is affordable and recommended for instruments that are in the dark for short periods of time only.

• Cost-effective
• Does not require electrical power
• Excellent for highlighting a word, key or logo
• Short periods of time in the dark

LEDs are ideal for lighting windows or specific elements. They are placed on the circuit and Memtronik Innovations regularly combines them with clear inks and diffusers.

• Very bright
• Excellent for lighting an element or window
• Long useful life

Optical fibre consists of a fibre laid flat on a reflector and light source, usually a LED. It is placed directly under the graphic overlay and may be used to light the surface partially or completely.

Electroluminescents consist of phosphorus particles printed on a polyester sheet. The particles light up when an alternative current (AC) is applied; this produces flexible, slim lighting that is easy to incorporate into a keypad.

• Flexible
• Illuminates wide areas
• Thin .010’’
• Uses alternating current