Exam Lights Rectifier Board Assembly (404564)5,500 degree Kelvin white LEDs provide the caregiver with a superior, white light that provides enhanced visualization of the exam are, true tissue color rendition, and uniform spot no dark or hot spots and no heat dissipation. Provides a lower cost of ownership due to the elimination of bulb replacement and overall lower energy consumption. Touchless auto on off control reduces the risk of infections due to cross contamination and simplifies cleaning.