Dark bulb

Dark bulb

Check whether the lamp’s warranty hours have been exceeded. Also check the lamp’s operating voltage. If it is too low, cooling could reduce the operating pressure in the lamp and contribute to early darkening. Multiple ignitions also accelerate darkening; thus, bulb ignitions should be kept to a minimum.



		Dark bulb Check whether the lamp’s warranty hours have been exceeded. Also check the lamp’s operating voltage. If it is too low, cooling could reduce the operating pressure in the lamp and contribute to early darkening. Multiple ignitions also accelerate darkening; thus, bulb ignitions should be kept to a minimum.