1.how important is IP ?
Classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accident contact, and water by mechanical casing and electrical enclosures.
2.what’s the payment methods you can accept ?
We can only use T/T. The bank information will be written in the PI. We can’t use Western Union and Paypal.
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.