CROWNDALED® Professional Commercial LED Lighting Fixtures Supplier, Manufacturer, Factory,Wholesale,has passed UL ETL DLC CE SAA etc Quality listed and ISO9001 international system certification,15 Years of Outdoor LED Lighting Development Experience.
Lumen 15W 450lms Luminous Flux 120-130lm/Watt Solar Panel 5.5V 1.8W (High-Efficiency Polycrystalline) CCT (Correlated Color Temperature) 3000-6500K (Optional) Sensing Distance 3-5m Delay Time 20-25 Second Working Mode 3 Mo...
Business Range: Lights & Lighting Business Type: Manufacturer/Factory, Trading Company Company Introduction Production Capacity Shenzhen Huachenda Technology Co., Ltd (HCD) was a high-tech corporation founded in 2007. HCD is a dedicated LED specialist with our integrated business process, including res...
A. Watt B. Lumen C. Celsius D. Newton 查看完整题目与答案 持续流重力浓缩时间不适当不大于( ) A. 2 B. 4 C. 8 D. 12 查看完整题目与答案 以下不是总成本领先战略的缺点的是() A. 容易受外部环境的影响 B. 技术变化降低企业资源的效用 C. 丧失对市场变化的预见能力 D...
瓦（特）（watt,法定符号W）：功率的单位，单位时间（1秒）所作的功等于1焦耳时的功率 1W=1J/S;1j=1W.s 国际单位制(SIE单位制)的光度单位 光度量几何学 名称符号单位英文名 光强度I坎德拉Candela(cd) 光照度E勒克斯Lux(lx) 光亮度L尼特Nit 光通量φ流明Lumen(lm) 与心理学关系密切的单色光单位有: 1.光...
Rechargeable Energy Saving Outdoor Waterproof Aluminum High Lumen Solar Road Lamps US$71.00-87.00 1 Piece (MOQ) Energy Saving IP65 Waterproof Aluminum SMD 120W 180W 240W Aio Integrated Solar Street LED Lamp US$36.78 100 Pieces (MOQ) 30W 50W ...
LED Flood Light IP66 140lm/W 3000K Ik09 NEMA High Lumen Anti-Glare Waterproof Dimmable Sensor 5 Years Warranty OEM ODM 1400W CE 1500W 1200W Projector US$41.00-541.00 1 Set (MOQ) LED Flood Light Outdoor High Power1000W 1500W Tower Projector...
A. 大于90° B. 小于90° C. 大于180。 D. 小于180° 查看完整题目与答案 哪一个单位用来表示光的强度? A. Watt B. Lumen C. Celsius D. Newton 查看完整题目与答案 持续流重力浓缩时间不适当不大于( ) A. 2 B. 4 C. 8 D. 12 查看完整题目与答案 以下不是总成本领先战...
IFCLUMINOUSFLUXMEASURE Luminous flux lumen lm lm (0, 0, 0, 0, 0, 0, 1) IfcUnitEnum.LUMINOUSFLUXUNIT IFCLUMINOUSINTENSITYDISTRIBUTIONMEASURE Luminous intensity distribution cd / lm (0, 0, 0, 0, 0, 0, 0) IfcDerivedUnitEnum.LUMINOUSINTENSITYDISTRIBUTIONUNIT IFCLUMINOUSINTENSITYMEASURE ...
北美能效认证管理组织 DepartmentofEnergy(DOE)美国能源部美国能源部主要负责家用器具能效法规的制定,并负责EnerGuide 标志即最低能效要求的管理.即DOE认证注册EnvironmentalProtectionAgency(EPA)美国环保署 美国环保署主要负责涉及环境问题和气候问题的管理.美国环保署和美国能源部共同创建了能源之星EnergyStar的标志并...