1.How to explain “lumen output “ ?
The total lumens emitted of a light source, system, or solution.
2.Do you have the ability to do independent and development ?
Our engineer department have 15-20 people. We have the research and development capabilities. We also collect regularly each customer feedback. We have product improvement and new product development. We also hold monthly new product launches.
3.What’s Power factor ?
The active power divided by the apparent power (i.e product of the rms input voltage and rms input current of a driver.)