

Premium Halogen Lighting
Made in Korea

Product Reliability
GREF FORTE halogen bulbs are manufactured in South Korea under strict automotive lighting production standards. Each halogen lamp is tested for stable light output, vibration resistance, beam accuracy and long service life to ensure reliable performance for passenger cars and commercial vehicles. Advanced quality control systems and continuous inspection processes help maintain consistent automotive lighting performance under real driving conditions.



Geometry Test
Measures precision in light source alignment and focus. Ensures accurate filament positioning according to ECE standards. Each bulb is checked individually to guarantee consistent performance
Vibration Test
Simulates real driving vibration conditions to test halogen bulb durability and filament stability. Each automotive bulb is checked for reliable lighting performance and long service life.
Airtightness Test
Tests halogen bulb sealing quality to prevent air leakage and maintain stable automotive lighting performance under different driving conditions. Each bulb is individually inspected for durability and reliability.



Life Test
Light Flux Measurement
Deflection Test
Checks the lifespan and durability of the bulb under continuous operating conditions. Testing is performed using specialized equipment to simulate long-term usage. Ensures stable performance throughout the product lifecycle
Measures luminous intensity and stable light output to ensure consistent halogen lighting performance for automotive headlight systems.
Evaluates mechanical strength and structural durability of automotive halogen bulbs under pressure and real operating conditions to ensure reliable lighting performance.

