These G4 Marine LED Bulbs come in several models (12V or 24V) and are ideal for replacing your existing incandescent or halogen bi-pin bulbs. Unique, cutting edge, internal circuitry and the highest quality components make Dr. LED's the longest lasting, most energy efficient marine LED bulbs on the market. These high-quality G4 marine LED Bulbs produce warm white or blue or red lights and are the perfect way to reduce energy consumption on your boat. They G4 marine LED bulbs have long service life, are shock-resistant, and UV, lead, and mercury free. These G4 marine LED bulbs are ideal for cockpit lights; map reading lights, emergency lights, etc. These G4 marine LED bulbs produce a flood-type beam and work well in many light fixtures.