Eagle Lights 4600 Series 4" x 6" (100mm x 165mm) 2A1 Low Beam LED Headlights - Pair (H4651 H4652 H4656 H4666 H6545) EAGLE LIGHTS QUALITY - Using high wattage LED lights, the 4600C is a super bright LED replacement for 2A1 headlights commonly found in Semi-Trucks and Fire Fighter apparatuses. They are plug and play replacements for the low beam lights in four headlight systems. They require less maintenance, consume less power and produce 300% more light on the road. You can see farther and be seen from farther away with Eagle Lights. PLUG N' PLAY - Our 4600 series headlights come with 2A1 three prong connection. It is plug and play and requires no extra parts for installation. Installation typically takes no more than 15-25 minutes depending on skill level. The Eagle Lights 4600 Series lights are direct replacement for the incandescent bulbs and fit directly into the stock headlight bucket with zero modifications. These lights are made to be used in four-headlight systems that have two low beam and two high beam lights. HOW BRIGHT ARE THEY - Extremely bright and incredibly noticeable! They output over 2000 lumens very far and wide down the road. The beam pattern is clear and wide. The Eagle Lights 4600C headlights are the brightest headlights available for your firetruck or semi-truck. All three LED projection lights will illuminate during high beam and low beam. Our lights will have the same functions as stock. EAGLE LIGHTS WARRANTY - The best warranty in the industry! With a 50,000 hour lifespan, the light may last just as long as your truck! But should something go wrong, you are covered by a full 1 year warranty. No hassle returns and no hassle warranty replacement. READY TO ROCK - DOT approved, high lumen output, easy direct fitment installation all backed by a 1 year warranty. Eagle Lights, the original, the best and the brightest. What are you waiting for?