Nicols IP WASH 120 Manuel D'utilisation page 12

5. MAINTENANCE
The cleaning of and external optical lenses must be carried out periodically to optimize light output. Cleaning frequency depends on the
environment in which the fixture operates: damp, smoky or particularly dirty surrounding can cause greater accumulation of dirt on the
unit's optics.
 Clean with soft cloth using normal glass cleaning fluid.
 Always dry the parts carefully.
 Clean the external optics at least every 20 days.