74 SMD1 LED Blue Set of 4 Diode Dynamics BMW and the IEC spec base

and the IEC spec base ensures the bulb properly connects into your vehicle's stock harness

LED Projector Technology AlphaRex integrated their patented rectangular projector lenses into the Dodge Ram Pro-series headlights

and bright LED low beam projector along with a dedicated LED high beam projector

The potted internals

74 SMD1 LED Blue Set of 4 Diode Dynamics BMW and the IEC spec baseDesign. The 74 SMD1 LED bulb is a low profile, compact LED replacement for any 74 size bulb. Populated with a single 5050 size SMD, the SMD1 upgrades the factory yellowish incandescent bulb to a more modern LED appearance. The SMD1 was designed with an embedded load resistor and implanted diode for superior reliability. With its durable plastic connectors, it will fit snugly in the socket, and its light weight means it won't vibrate loose over time.