... humidity10%-90%Luminous Flu100LmLED heat radiationAluminiumWeight60gFeatures1. Advanced constant current driver.2. Professional thermal management.3. Instant on, no ... warm up time required.4. No noise, no flickering.5. No UV or IR radiation in the beam, mercury ... High Lumen LED spot for indoor are widely used in office buildings, stores, supermarkets, schools, hospitals,hotel, car parks, factory floor, ...