UMA's instrument lighting system uses an electro-luminescent (EL) light strip, which eliminates the need for replacing light bulbs, and provides an ideal alternative for upgrading aircraft post lights or other indirect instrument lighting. The electro-luminescent strip is housed in a black injection-molded bezel and is ready for installation. The low current draw produces virtually no heat. These EL bezels require AC current for illumination and may require a small inverter to convert battery DC current to AC current. This EL light bezel (EDMO# 2-21-G) fits over 2-1/4 inch standard instruments, has no cutout and Aviation green lighting.