1)Dimmable led ceiling lamp 2)CREE chip, life >50000Hrs, 3)High lumen & efficiency ... Humidity:0%-90%Warranty:3 YearsAdvantage: LED Ceiling Lamp VS Traditional Lamp (100EA ceiling Lamp, 8H/D, 1Year)Item NameLED Ceiling LampLamp ... 100EA = $150.0Energy Saving Charge (1 Year, 100EA, LED Ceiling Lamp VS Traditional Light)$1752.0 + $300.0 - $204.4 = ... . Cree LED/LED High Power/High Power LED Ceiling Lamp