The 9004 High Low Dual Beam LED Light Bulbs for 1987 1988 1989 1990 1991 Ford F150 F250 F350 Notice: If there are any installation problems, or the bulbs are not suitable, or other problems, send us a message via Amazon email. We will help you. Why upgrade halogen to led bulb? With the development of the times, halogen bulbs have become a thing of the past. Compared with it, led bulbs have the advantages of faster lighting, lower heat, longer life, higher brightness, energy saving. Difference between LED bulbs and halogens: Brightness: the brightness of led bulb is much higher than halogen.Color temperature: halogen is about 2700K and produces yellow light; LED bulbs can reach 6000k, producing white light. Make your eyes more comfortable.Life: under the appropriate current and voltage, the life of led bulbs can reach more than 50,000 hours. The halogen life is generally 500 hours.Energy consumption: the energy consumption of LED bulb is only 1/20 of the halogen, special energy saving. How to choose LED light bulbs? It can be considered from several dimensions: brightness, color temperature, light type, safety and service life: Brightness: related to the lumen value. The higher the lumen value, the greater the power. It results in higher bulb temperature. Long time high temperature will increase the LED bulb loss. So choose the right lumen, do not blindly pursue too high.Color temperature affects the color of light: the bulb at about 6000K is closer to daylight, which makes eyes more comfortable. If driving under high or low color temperature lights for a long time, eyes will feel tired and accidents will happen easily.Light type: a good light type has a clear cutoff line, which will not be harsh to coming driver, but illuminate wider road surface, reducing the driving blind area.Safety and life: light decay is the main factor affecting life and safety. Heat dissipation is an important factor affecting light decay. At present, the best heat dissipation way of LED lights is to use fan to actively dissipate heat. Why Choose Xenooto 9004 HB1 LED Headlight Bulbs for 1987 1988 1989 1990 1991 Ford F150 F250 F350 ? Simply Replacing: The small size of the 9004 led light bulb allows it to fit directly into the factory housing without any modification to the bulb or housing.See Further: 3X Brightness Output. 6000K cool white. 9004 bulb provides further and wider visibility for you to see wild animals, falling rocks or other obstacles in advance. Better ensure safer driving.NO Dark Spots: led 9004 light bulb narrowed the LED gap to only 0.039 in. Super focused beam pattern. No blinding to oncoming drivers.IP67 Waterproof: Excellent dust and water-resistant performance. 9004 hb1 light bulbs keep working on any bad weather like rainy, snowy, foggy day, etc. The 9004 led bulb utilizes advanced chips to mimic the filament and output of a factory halogen bulb, which produces beam patterns with a more intense, focused light on the road. The 9004 light bulb is 3 brightness as stock halogen. With intelligent cooling system, it lasts over 50,000 hours long lifespan. No frequent replacement. CANBus ready. The 9004 bulb is compatible with most. No errors, No flicker, No flashing, No dash board error waring.