Product Specifications

F8C H11 360° Adjustable LED Headlight Bulb

The F8C H11 is engineered to deliver a strong lighting upgrade in a compact format. A metal 360° adjustable chuck allows precise orientation of the light source so the emitting surface aligns with the reflector or projector optics. Correct alignment improves the beam cut line, concentrates the hot spot, and minimizes stray scatter, which is essential for confident night driving.

Although the body is small, output is impressive. The light engine uses eight GC-3570 automotive-grade LEDs. Typical measured performance shows an initial 6874 lumens at approximately 80.33 watts and a stable 4919 lumens around 58.75 watts, giving bright forward reach without excessive glare. Such headroom is useful for long highway stretches and rural roads where peripheral visibility matters.

Thermal control is handled by a three-part system. First, dual high-conductivity copper heat pipes draw heat rapidly away from the LED junction area. Second, an aircraft-grade aluminum heat sink spreads and dissipates that heat efficiently through dense fins. Third, a quiet, high-speed fan enhances airflow, keeping temperatures in the optimal range during extended night use or summer heat. The combination helps maintain consistent brightness and extends component life.

Power delivery is built around a switching constant-current driver. This architecture stabilizes output against battery fluctuations, reduces flicker, and protects the LEDs from current spikes during engine start or sudden load changes. The driver is designed with high power density, allowing a compact enclosure while still supporting up to 80 W class operation. Intelligent temperature control further moderates drive current when thermal limits are approached, prioritizing reliability without sudden brightness drop-offs.

Installation is straightforward. The compact bulb body and external driver fit easily in most housings, and the adjustable chuck lets you lock the orientation in seconds. Typical install time is around a minute per side for experienced users. Polarity guidance ensures correct connection, and the electrical platform operates on DC 9–18 V for both 12 V passenger vehicles and many 24 V systems with regulated feeds. Compatibility is broad, covering the needs of the vast majority of vehicles using the H11 interface.

The optical configuration provides full 360° emission around the center line, supporting uniform illumination within reflector-type housings and clean, focused output in projector-type housings when oriented correctly. With accurate positioning, the low-beam pattern presents a crisp cutoff and wide foreground spread, while the high-beam circuit in dual-lamp systems benefits from a concentrated hot spot that pushes reach further down the road.

Attention to materials helps the bulb stand up to daily duty. The aluminum body resists corrosion and vibration, the copper heat pipes maintain thermal performance over time, and the fan is tuned for low noise to avoid cabin intrusion. The LED chips are automotive grade for stable chromaticity and lumen maintenance. Electrical design choices, including constant-current regulation and protective logic, reduce the chance of radio interference and prolong component life.

Measured current at 13.5 V is approximately 5.9 ± 0.5 A, reflecting the performance-oriented nature of the system while staying manageable for typical headlight circuits. When combined with accurate alignment from the 360° chuck, users can expect a clear upgrade in near-field illumination and mid-to-long-range visibility, enhancing reaction time to road hazards and improving lane marking recognition.

For buyers who value compliance and quality assurance, the product meets CE and RoHS requirements. The overall package—compact size with high power, precise mechanical alignment, robust thermal design, and regulated power delivery—makes the F8C H11 a practical, durable choice for drivers seeking a straightforward LED replacement that prioritizes real-world visibility and reliability.