A cuttable illumination device has a first lamp, a second lamp, a current source element, and a voltage breakdown element connected such that the first lamp may be removed from the device without affecting the function and performance of the remaining portion of the illumination device. Additional lamps may be added to the device in conjunction with additional voltage breakdown elements to form a string of lamps where any number of lamps may be removed without affecting the function and performance of the remaining portion of the device. The device may have a waveguide member and a housing, creating a cuttable illumination device for simulating neon lighting.