The 151 series, from Marl International, are single-level PCB LED indicators. They consist of a 5mm (T-1 3/4) LED within a black plastic housing. The right angle housing provides a high contrast ratio to the LED.
Features of the 151 series LED indicators:
Through-hole mounting
1 x 5mm (T-1 3/4) LED
Black plastic housing
Right angle
Bi-colour