Okuman HL series surgical operating lamps offer shadowless and efficient illumination. So even the operator’s head, shoulders, or arms placed in front of the light and create shadow optical brightness does not decrease, and shadowing would be kept to a minimum at operation made ground. With continuous reflect versatile technology and column of illumination light over the depth of 700 mm, from the first cut to deepest recesses it provides stable and continuous lighting during the operation. To create the closest color temperature lamps have high colorful rendering index. It provides to operator to see tissue color as nearest to the true color so that it minimizes failing according to tissue colors.