The H7 LED system generally offers a higher light output compared to the H4 LED system, but at a potentially higher cost.
Here's a breakdown:
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Light Output: H7 systems often have superior light output because they utilize separate bulbs for high and low beams, optimizing each function. In contrast, H4 bulbs combine both high and low beams into a single bulb. The reference states the H7 has higher light output due to the interaction of two lamps (high and low beam).
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Cost: While H7 systems can provide better illumination, they typically require twice the number of bulbs (four instead of two) compared to H4 systems. Since bulbs are often replaced in pairs, the long-term cost of maintaining H7 headlights can be higher, as the reference indicates.
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Complexity: H7 systems can be slightly more complex to install than H4 systems due to the separate bulbs and wiring for high and low beams.
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Vehicle Compatibility: The "better" option depends entirely on your vehicle. You must use the bulb type specified for your vehicle's headlight assembly. You cannot simply switch between H4 and H7.
In summary, if you prioritize maximum light output and your vehicle is compatible, H7 LEDs might be preferred. However, consider the higher long-term cost of bulb replacement. If cost is a major concern or your vehicle requires H4 bulbs, H4 LEDs are a perfectly viable option.
