Shenzhen Toppo lighting company have 10 years history for producing and selling led lights.And Toppo also have authorized certifications for tri-proof, Batten ,tube,Ceiling ,Down light,Round Panel Light, 2D ceiling Light and Wall Pack, such as TUV/SAA/CE/ROHS/VED/UL etc.Send InquiryChat Now
1.LEDs are more expensive than other lighting options.why ?
LEDs can operate as standalone devices,but when grouped or clustered they require additional steps to operate properly. LEDs need proper components such as a circuits can be designed rapidly, but to ensure that they operate correctly and for long periods of time they require testing.
2.what’s the meaning of “Beam Angle “?
The spread of light from a luminaire. For example: a fitting such as a low bay ,which is closer to the floor,will have a wider beam angle to illuminate a given floor area while a high bay fitting will have a narrower beam.
3.What’s the fire rating categories ?
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.Toppo Lighting is one of the leading about 60% saving energy best quality panel manufacturers and suppliers in China, which is equipped with a productive factory. Welcome to import the newest about 60% saving energy best quality panel at competitive price with us. We can also offer you customized service.