KL09L, KL12L, and KL1205L hanging hole type surgical shadowless lamps use multiple sets of different light sources and focus knobs to make the beam illuminate the surgical and examination parts from different positions, reducing the shadows caused by the heads, hands and other parts of the medical staff. The illuminance can be adjusted according to actual needs. The shadowless lamp is suitable for operation lighting in medical units. KL09L means 9 holes, KL12L means 12 holes, and KL1205L means 12 holes plus 5 holes.