What’s Lumen?
RE: The international (SI) unit of luminous flux or quantity of light and equals the amount of light that is spread over a square foot of surface by one candle power when all parts of the surface are exactly one foot from the light source.
What’s Power factor ?
RE: The active power divided by the apparent power (i.e product of the rms input voltage and rms input current of a driver.)
What’s Smart Lighting ?
RE: Automated lighting control using sensors and /or scheduling switches.
What’s Watt ?
RE: The unit of electrical power as used by an electrical device during its operation. Many lamps come with rating in watts to indicate their power consumption.
How to explain “ZigBee“ ?
RE: A low -power ,low date rate, local area wireless network; ideal for lighting control.
How to explain “lumen output “ ?
RE: The total lumens emitted of a light source, system, or solution.
How to explain “luminous Efficacy“ ?
RE: A measure of how well a light source products visible light expressed as lumens /Watt.
Thank you for your using Dualrays LED luminaires, we regards quality first as our marketing philosophy from the design and package of all our
products,we here declare that all of our products are tested by professionals and obey strict quality standards,we have professional after-sale
service team to follow our customers,we promise that when you find any quality problems caused by the products quality itself within its
guarantee period,you can contact us freely. When confirmed by the QC Department, we will immediately help you to exchange or
maintain products for free.Shenzhen Dualrays Optoelectronics Co., LIMITED. will serve you with heart and soul!
