Features of the range include optional flying lead terminations, and a choice of five colours. An internal reverse voltage protection diode is fitted as standard to all models, to help prevent damage in the event of the incorrect application of polarity. Marl 612 Series LEDs are 9mm in external diameter, have a mounting hole diameter of 6.35mm, and weigh just 4.09g.
For portable applications requiring an even smaller solution Marl offers the 603/604 Series in nickel plated brass, with an external diameter of 7.9mm and mounting hole of 5.0mm.