The Fluorescent CMY Kit is for use with only the UniNet iColor 600 laser printer.
The toner cartridge life expectancy (based on 5% coverage) is 10,000 pages for all colors, including white.
The image drum life expectancy is 30,000 pages for all colors. The toner cartridge sits inside the image drum and typically lasts for 2-3 toner cartridges. Image drums do not contain toner. Toner cartridges are sold separately.