Our 42mm festoon warm white 3000-3300K LED bulbs incorporate 3 surface mount diodes (SMD's) to provide 50 lumens of light. Ideal for use in narrowboats, caravans, campervans, caravanettes, cars and other battery driven applications. They can also be powered by a suitable Led driver which we can also provide. They work in the 10-30 Vdc range so are suitable for many applications up to 30 Vdc.
The connection points pins are polarity neutral (it doesn't matter which way the positive and negative are connected as the bulb manages it) and have a surge suppressing circuit to protect the bulb from voltage overloads
Note: These bulbs may be different in size to the halogen equivalents. Please ensure you check the dimension diagram before ordering.