Lamp Intrinsic Factors
Lamp type (low-pressure / medium-pressure)
Lamp power and manufacturing technology
Purity of electrode and quartz tube materials
Lamp operating hours (aging and attenuation)
Operating Conditions
Stability of supply voltage and current
Whether lamp temperature is in the optimal range
Switching frequency (frequent starts accelerate attenuation)
Water Quality & Sleeve Factors
Fouling, dirt and aging of the quartz sleeve
Water turbidity, organic matter and UV transmittance (UVT)
Water flow rate and cooling efficiency
Environment & Installation Factors
Reflectivity of the reactor chamber
Sensor position and installation angle
Ambient temperature, humidity and ventilation