Three-Color Light Source A Products Category : Optical Products > Optical Instruments INQUIRY Details Operating Voltage input DC4.5V/output 6V, with voltage tranfer switch at the back,red,green and blue button to adjust brightness,Square View Screen,clear picture. Send Inquiry Name:* E-mail:* Tel: Content:* Verification Code:* (All * must be filled in) [ Previous: ] [ Next: ] Related Products Light Refraction and Reflection Newtons Seven-Disc Interference and Diffraction of Light(Red) Slit Film Optical Full Set Light Propagation The Poisson Bright Spots Presenter Optical Glass Brick