The Julbo Powell Spectron 3CF Lens Sunglasses. The Powell Spectron 3CF sunglasses are stylish towear everyday and also ideal for travel. Not only do they look good but have been made with the highest quality that includes the polarized lens that help filter out dazzling light reflections such as water surface reflection. No matter where the trip takes you - the Powell is the ideal companion. Julbo Powell Spectron 3CF Lens Sunglasses Features Protection category: 3  Flash coating: improves visible light filtering with mirror effect lenses. Reflects the rays of light and increases the filter effect. Light yet offers good shock resistance, is multipurpose and suitable for all types of activity.