FAQs — Boslla 9004 Headlight Bulbs
Q: How do I switch colors on the 3-color 9004 bulbs?
A: Simply cycle your headlights off and on quickly to change between white, warm white, and yellow light modes — no extra tools needed.
Q: What’s the difference between 140W, 110W, and 100W bulbs?
A:
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140W provides maximum brightness for long-distance visibility.
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110W balances brightness and energy efficiency.
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100W is great for everyday driving with reliable illumination.
Q: Are these bulbs compatible with all vehicles using 9004?
A: Yes, Boslla 9004 LEDs fit standard 9004 sockets. Always check your vehicle manual for compatibility.
Q: Will these bulbs cause flickering or error codes?
A: Most vehicles will not have issues. Some newer models with CANBUS systems may require an anti-flicker decoder — Boslla offers these if needed.
Q: Are Boslla 9004 LEDs street legal?
A: Designed with safe beam patterns to minimize glare, but always check local regulations before installation.
