Ring light illumination units offer a bright light field with sharp contrast and minimal shadow, but can cause glare if used on reflective parts. These units have permanent and pulse (strobing) modes. Their pulse mode alternates between high and normal light intensities.

Bar light illumination units create uniform fields of light to enhance contrast or highlight edges and other details on object surfaces. These units can be used individually, or several units can be combined to illuminate a larger area. They have permanent and pulse (strobing) modes. Their pulse mode alternates between high and normal light intensities.