The power source for the UV lamps in both the 10-inch and 20-inch water purification systems operates within a voltage range of 100-240VAC and supports a frequency of 50/60Hz. It features a countdown function from 365 days to 0, allowing you to track the life of the UV lamps. The ballast provides output and lamp failure protection, with a preheat start for reliable lamp ignition. It includes audible and visual alarms for monitoring and has thermally conductive adhesive on the inside for efficient heat dissipation. Its compact dimensions of 200x75x52mm make it easy to install and integrate into the UV system.