FIELD OF THE INVENTION
This invention relates to a High power LED Street light which are designed for the street lighting demand and fully meets the special requirements of street lighting.
BACKGROUND OF THE INVENTION
An LED street light is an integrated light that uses light emitting diodes (LED) as its light source. These are considered integrated lights because, in most cases, the luminaire and the fixture are not separate parts (except LEDGine-based luminaires). New in manufacturing, the LED light cluster is sealed on a panel and then assembled to the LED panel with a heat sink to become an integrated lighting fixture.
Different designs have been created that incorporate various types of LEDs into a light fixture. The current trend is to use high power 1 watt LEDs. However, some companies use low power LEDs in their products, including several low power LEDs packed together to perform the same purpose as a single high power LED. The shape of the LED street light depends on several factors, including LED configuration, the heat sink used with the LEDs and aesthetic design preference.
Heat sinks for LED street lights are similar in design to heat sinks used to cool
other electronics such as computers. Heat sinks tend to have as many grooves as
2

possible to facilitate the flow of hot air away from the LEDs. The area of heat exchange directly affects the lifespan of the LED street light. The lifespan of an LED street light is determined by its light output compared to its original design specification. Once its brightness decreases by 30 percent, an LED street light is considered to be at the end of its life.
Most LED street lights have a lens on the LED panel, which is designed to cast its light in a rectangular pattern, an advantage compared to traditional street lights, which typically have a reflector on the back side of a high-pressure sodium lamp. In this case, much of the luminance of the light is lost and produces light pollution in the air and surrounding environment. Such street lights can also cause glare for drivers and pedestrians. A drawback of LED focus panels is that most light is directed to the road, and less light to the footpaths and other areas. This can be addressed by the use of specialized lens design and adjustable mounting spigots.
WO/2011/126233 (AMOLUXE CO., LTD. GILL, Jason Jae) discloses an LED
street light which has high heat radiation efficiency and can implement an LED
lighting favorable to light distribution while maintaining the original shape of a
normal post top street light as much as possible. The present invention comprises:
a connection member disposed on an upper end of a pillar; a transparent or
translucent protection cover disposed on an upper side of the connection member;
at least one LED module surrounded by the protection cover; and a heat sink which
3

is disposed on an upper side of the protection cover, an accommodation space to accommodate the LED module together with the connection member, and is mounted on a lower surface of the LED module so as to radiate heat from the LED module to the outside.
102278667 CN (201110163292.7 Lite-On Technology Corp. Lee Chung-En) discloses to an LED street light which includes a central housing portion having two spaced-apart sidewalls, and two lateral housing portions disposed respectively on two opposite longitudinal sides of the central housing portion. Each lateral housing portion includes a first plate fixed to a respective sidewall and having a first plate opening, a second plate connected to the first plate, a curved plate connected to the second plate, and a reflection layer disposed on the curved plate and facing one of the sidewalls. The first plate and the curved plate of each lateral housing portion have bottom ends defining a bottom opening. A plurality of light-emitting modules are disposed on each sidewall. Each light-emitting module includes at least one LED element, and extends into one of the lateral housing portions through the first plate opening. The reflection layer reflects the light emitted by the LED element toward the bottom opening.
204420733 CN (201520061794.2 CHANGZHOU JIANGUO ELECTRICAL
CO., LTD. ZHANG YUXIAN) discloses an LED street light fixture which
comprises a fixture mounting rack, a radiating body, a driving power supply and
4

LED light sets. The radiating body is a hollow tubular body, the cross section of the tubular body is shaped like a fan, radiating fins are formed on the arc-shaped outer surface of the radiating body, the LED light sets are symmetrically arranged on the V-shaped outer surface, a light expansion cover which can cover the whole LED light sets is arranged on the V-shaped outer surface, two or more long pore passages which are connected with the radiating body integrally and formed in the length direction of the radiating body are formed in the inner cavity of the radiating body, the driving power supply is arranged in the inner cavity of the radiating body, a rain-proof and dust-proof decorative body is further provided, and the fixture mounting rack and the rain-proof and dust-proof decorative body are arranged at the two ends of the radiating body and seal the two ends of the radiating body respectively through matching of the long bolts and long pore passages of the radiating body. Compared with the current similar products, the LED street light fixture has the advantages that the heat dissipation performance and the irradiation effect on the road surface are greatly improved, the irradiation range on the road surface is large, the evenness of the irradiation is high, and the light overlapping phenomenon and the dazzling phenomenon are not prone to occurrence.
184503 SG (2012074704 AMOLUXE CO., LTD. GILL, JASON JAE) discloses an LED street light which has high heat radiation efficiency and can implement an
5

LED lighting favorable to light distribution while maintaining the original shape of a normal post top street light as much as possible. The present invention comprises: a connection member disposed on an upper end of a pillar; a transparent or translucent protection cover disposed on an upper side of the connection member; at least one LED module surrounded by the protection cover; and a heat sink which is disposed on an upper side of the protection cover, an accommodation space to accommodate the LED module together with the connection member, and is mounted on a lower surface of the LED module so as to radiate heat from the LED module to the outside.
101332351KR (1020130042225 LEE, SUNG HUN) discloses a street light
LED structure comprising a main body including a light emitting module that has a substrate and LEDs mounted on the substrate, and a heat dissipation device; a connection part formed in the main body, specifically providing a street light LED structure including a tilt control part installed and connected to the connection part with a predetermined tilt angle to control the upper and the lower tilt irradiation angle of the main body; and a rotation angle control part installed and connected to the angel control part and controlling the left and the right tilt irradiation angle of the main body. Therefore, there is an effect that a tilt angle and a rotation angle are freely controlled according to a lighting space when a lighting unit is replaced with
6

the LED lighting unit without changing the structure of the LED lighting unit for a street light.
1020130129514 KR (1020120053439 DAEGWANGNAITEK CO., LTD. LEE, CHUNG YOUNG) discloses an LED street light. A heat plate is filled with a heat medium oil and is formed in a substrate with an LED. A heat radiation body is made of Al and is in surface contact with the heat plate to easily radiate the high temperature heat from the substrate with the LED to the outside of the heat radiation body. The lifetime of the LED is extended.
1015402000000 KR (1020150024946 LEE, SUNG OKLEE, SUNG OK) discloses
a lighting emitting diode (LED) street light. The LED street light comprises: a
pillar having a pipe-shape and a light passing hole passing through the pillar, the
light passing hole having an open upper part with an empty cylindrical shape and a
specific pattern formed on an external circumferential surface thereof; a base plate
mounted on a bottom surface of the pillar, having a size larger than an outer
diameter of the pillar, and being anchored on a ground surface to prevent the pillar
from falling down; at least two support stands having an inverted triangle-shape
where two sides, except for an oblique side, are fixated to an outer peripheral
surface of a lower part of the pillar and an upper surface of the base plate,
respectively, to support connection between the pillar and the base plate; a lighting
emitting means mounted on an interior of the pillar and emitting light depending
7

on a control signal from a control means to allow the light to be discharged outside of the pillar through the light passing hole; the control means mounted on the interior of the pillar to turn on/off the light emitting means depending on a programmed pattern; and a finished lid having a cylindrical shape with an opened bottom surface and a closed top surface and enclosing the opened upper part of the pillar to prevent rainwater from flowing into the pillar. According to the present invention, in the LED street light, when an LED included in an LED module is turned on in accordance with a control signal from the control means, light generated by the LED is diffused through a light diffusion member made of light diffusion Polycarbonate material and passes through the light passing hole having the specific pattern.
None of the prior art indicates above either alone or in combination with one another disclose what the present invention has disclosed.
The present invention relates to a High power LED Street light which are designed
for the street lighting demand and fully meets the special requirements of street
lighting. The present invention adopts the high power LED as the light source,
using dozens of high power nichia emitters of 5 watt LED with the world’s leading
optical allocation, advance thermal, structural and circuit design. The present
invention is highly cost effective LED street light product. They are ideal for
illumination in the main roads/ areas of campuses, lighting up streets, gardens etc.
8

SUMMARY OF THE INVENTION
Light emitting diodes (LED) have virtually replaced both incandescent lamps and the occasional fluorescent lamp in traffic signal and crossing sign usage. They are rapidly developing in light output, color rendering, efficiency, and reliability. The cost of LED lighting is still extremely high compared to an incandescent lamp used for the same purpose, but the cost is decreasing rapidly. Even with the high per-unit cost, the increase in efficiency and increased lifespan make them very attractive for street lighting use. The reduced cost of electricity and maintenance in many cases can offset the increased cost of the lamp.
The present invention relates to a High power LED Street light which are designed for the street lighting demand and fully meets the special requirements of street lighting. The present invention adopts the high power LED as the light source, using dozens of high power nichia emitters of 5 watt LED with the world’s leading optical allocation, advance thermal, structural and circuit design. The present invention is highly cost effective LED street light product. They are ideal for illumination in the main roads/ areas of campuses, lighting up streets, gardens etc.
9

DETALIED DESCRIPTION OF THE INVENTION
The specification of the invention is as follow:

Rated Power 55 W
Input 180 VAC-265 VAC
Frequency 50 Hz
Power factor >0.9
THD <20%
Surge protection 10KV/10KA
System flux 5335 Lumens
System efficacy >90 lumens/watt
LED CCT Cool White: 5310K-6020K)
CRI Ra>70
Light distribution Type(Horizontal: 1200, Vertical: 500C)
Uplight rating U0 (Zero uplight), 100% usable Light
LED Life L70 >60,000 hrs
Ingress protection IP65
10

Vibration protection 3G
Body and Lens material Aluminium alloy, polycarbonate (PC) and Glass filled Nylon
Working Temperature -25oC to +50oC
Working humidity 10%-95 % RH
Weight 4-6 Kg
Pole Dia & Insertion 1.5 inch-2.5 inch; 100 mm
The present invention has the main features as under:
• Range from 28 W upto 110 W LED Street Light
• Greater than 90 lumen/watt efficacy
• Type II optics-PC Optical Enclosure
• Zero Uplight- 100% Usable Light
• 10KV/10KA Surge Protection (optical)
• CISPR 22 Class B Compliant
• Zero-90 degree Mounting Tilt Mechanism
• The optic lenses give a wider dispersion of light, covering maximum areas and increasing the pole spacing
• IP-67 Driver
11

• More energy efficient and environment friendly
• No glass - reduce damage
• No insect swarming
The applications of the present invention are as follow:
> Street Lighting
> Garden Lighting
> Campus Lighting
> Replacement of High-wattage Sodium Vapour Lamps

We Claim:
1. A High power LED Street light comprises dozens of high power nichia emitters
of 5 watt LED.
2. The LED street light as claimed in claim 1, wherein range is from 28 W upto
HOW LED Street Light.
3. The LED street light as claimed in claim 1, wherein LED is Greater than 90 lumen/ watt efficacy.
4. The LED street light as claimed in claim 1, wherein Type II optics-PC Optical Enclosure is attached.
5. The LED street light as claimed in claim 1, wherein Surge Protection is (optical) 10KV/10KA.
6. The LED street light as claimed in claim 1, wherein LED is mounting tilt mechanism on Zero-90 degree.
7. The LED street light as claimed in claim 1, wherein System flux is 5335
Lumens.