Long Life Span Led High Bay Fixtures 150W 140lm/w DALI Dimming 5 Years Warranty

Q1.Do you know “dali “?

RE: Digital addressable lighting interface (DALI) is a trademark for network-based systems that control lighting in building automation.

Q2.What’s the fire rating categories ?

RE: VO-Burning stops within 10 seconds on vertical specimen; drips of particles allowed as long as they are not inflamed.

HB-Slow burning on a horizonal specimen’s burning rate <76mm /min thickness <3mm or burning stops before 100mm.

TP(b)-Slow burning rate <50mm / min for thickness <3mm.

TP(a)-Self extinguishes and flaming and afterglow should not exceed 5 seconds once source the source of flame is removed.

Q3.How to explain “Flux/luminous Flux “?

RE: Luminous flux is the measure of the perceived power of light produced by the LED, adjusting to reflect the varying sensitivity of the human eye to different wavelengths of light.

Q4.How to explain “illuminance“?

RE: The intensity of light falling on a surface area. If the area is measured in square feet, the unit of illuminance is footcandles(fc). If measured in square metres, the unit of illuminance is Lux.

Q5.What’s efficacy about the light ?

RE: The light output of a light source divided by the total electrical power input to that source, expressed in lumens per watt(lm/w).

Q6.How important is IP ?

RE: 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.