Solid-state (LED) indicator light complete with built-in current-limiting resistor and rectifier diode.
Brand name(s) : VCC Lite / CML Innovative Technologies Ltd / Chicago Miniature

Voltage range: 22vac to 32vac / 12vdc to 24vdc

To use 24V model: Beyond 32VAC add 30 ohms per volt; beyond 24 VDC add 50 ohms per volt.
Use 1/2W resistor up to 50V; 1W resistor for 50V to 70V; 2W resistor for 75V to 125V. Do not use beyond 125V

Mounting: Will snap-fit into Ø.500/.505 hole in panels .020 / .100 thick.
Wire Leads: No. 22 AWG (105°C) 4.40/4.80 long, stripped .430/.570
Lens: Polycarbonate
Anode(+): Red lead
Bezel: Polished stainless steel.
Housing: White Nylon