ECE-approved. Kellerman high power LED technology. “IC”-chip technology. 32 MHz real-time microprocessor controlled. Silent-Current, advanced Power Saving algorithm. High measure of visibility across a wide-angle range. Longlife Protection Guard. Suitable for 12 vold DC applications. Flow-optimized metal housing, high-quality manufacturing. M8 x 20mm thread. High-quality vibration-absorbing bearing.