street led lighting manufacturers toppo lighting
• IP65 water proof /dust proof /explosion proof /IK8
| • Stainless steel clip as standard clit|
• IP65 connector for multiple link
• Single or double side wiring
• Replacement for fluorescent NCF fittings
| • Input Voltage:|
Philips driver: AC200-240V 50/60Hz
Toppo driver: AC90-277V 50/60Hz
• Operation Voltage: DC36-42V
• Total harmonic distortion: THD<15%
• Power Factor: PF>0.95
• Color Index: Ra>80
• Lumen maintenance @6000h: >80%
• Switching cycle before failure: 100,000
• IP Rating: IP65
• Life Span: 50,000 hours
• Warranty: 5 years
• Operation Temperature: -15°C~+50°C
• Storage Temperature: -25°C~+55°C•
|Why choose us?|
Toppo Lighting is one of the leading traditional tube fixture led fluorescent replacement manufacturers and suppliers in China, which is equipped with a productive factory. Welcome to import the newest traditional tube fixture led fluorescent replacement at competitive price with us. We can also offer you customized service.
1.How to explain “Flux/luminous Flux “?
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.
2.Why we use the high power LED ?
A high power LED, sometimes referred to as a power LED, is one that is driven at current of 350mA or higher.
3.How to explain “illuminance“?
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.
4.What’s efficacy about the light ?
The light output of a light source divided by the total electrical power input to that source, expressed in lumens per watt(lm/w).
5.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.
6.How do we explain “CRI” ?
A measure of the degree of colour shift objects undergo when illuminated by the light source as compared with those same objects when illuminated by a reference source of comparable colour temperature. The reference source has a CRI of 100.