Over time the efficiency of any UV sterilizer will start to diminish because the lamp degrades and will no longer putting out the same amount of energy and spectrum. Replace your IceCap UV lamp and quartz sleeve once a year or every 10,000 hours will keep your IceCap UV Sterilizer working like new. WARNING: Never look at a UV lamp when on. Doing so can severely damage your eyesight.Features:

• 27w UV Lamp
• Length: 11.3"
• Current: 800mA
• UVC Output: (uW/cm2) 105
• Lamp Life: 10,000hrs