Halo Automotive White Super LED 194 Bulb - Twin Pack Halo Super White LED's (Light Emitting Diodes) have an estimated life span of 100,000 hours Halo LED Bulbs use a super LED chip that provides 300 percentage more light than a standard LED chip Halo LEDs use a fraction of the energy that a halogen bulb uses while providing brighter, more efficient and longer lasting light Utilizing the latest in LED technology Halo Super White LEDs provide a pure white color unattainable from any other lighting technology Halo Bulbs outlast and out perform the competition for a fraction of the price