Replace incandescent wedge base bulb, 194/168 type. Available with wide viewing angle by installing 4 LEDs pointed out horizontally (as shown here) or by using concave lens housing one high flux LED for non-polarized light. Features: 1) Wide viewing angle 2) Monochromatic color 3) Low heat generation 4) Circuit board completely sealed in epoxy to resist vibration, water and corrosion 5) Draws low current for saving power consumption 6) Available for 6V, 12V and 28V DC 7) Super long life span up to 100,000 hours, and instant ON/OFF