Quick Details Place of Origin: China (Mainland) Brand Name: Dengfeng Model Number: DF-268C Bulb Type: LED Battery Type: Lead-acid Material: Plastic Usage: Office Certification: CE/ROSH/FCC Specifications: down power to 4w 1.5H Lighting source Power: 5w~30w Emergency power: 3w~5w Input voltage: AC100-280V/50-60HZ The service life: 30000Hours Duration: 1h/2h/3h Operation temperature: -20--50℃ ,Website:http://www.df-emergency.com, 65+20% RH Battery: 3.6V LiR rechargeable battery pack Charging Time: >24h without break Conversion efficiency: ≥90%Power factor: ≥90%Packaging & DeliveryPackaging Details:carton case or packed as requiredDelivery Detail:7-21daysProduct Description TUV CE Rohs FCC Certified LED Emergency Light Power Kits 1) Power: 4W 2) Conversion Efficiency: ≥90% 3) Working Lifetime(Hour): 30000 4) 3 years warranty 5) High quality and Manufacturer PriceLED Emergency Power Pack:4W 1.5H 100% powerPart No.DF-268CProduct NameLED emergency packBattery capacity3.6V  Lithium batteryEmergency Power3WInput voltageAC 90~280V, 50/60HzCharging current170-300mASignallingYesWorking Test buttonYesAutomatic Monthly TestNoAutomatic yearly TestNoDurationcustom-madeBattery protectionYesOperation temperature-20--50℃  , 65+20% RHHighest Surface Temperature60°CBattery3.6V Rechargeable battery packCharging Time>24h without breakOut Voltage in emergencyDC 12-80VSuitable light sourceLED Panel Light, LED Ceiling Lights,LED Downlight etc.NoteThe battery size is custom-made