At the core of the ST-X 12 Inch you will find world-class A grade 15W reverse facing emitters pushing out 2100 Lumens at a stunning 5000K colour temperature. The 30-degree horizontal beam pattern facilitates maximum illumination at the mid to long-range, all the way out to 1 lux @ 429m, with very little light within the first 80m. The 15-degree vertical spread means minimal light wasted and significantly reduces glare from road signs.
If you're looking for a driving light that offers near-field spread, keep moving, this is not that. The optical properties of the hooded reflector design is best described as high-beam on steroids. The ST-X excels in the high-speed, high-way application when mid to long-range visibility is critical.