Lighting Guide Plate of Panel Light Analysis

Lighting Guide Plate of Panel Light

There are three kinds of Lighting Guide Plate (LGP) used in LED panel light. carving LGP, silk printing LGP and nano LGP.

Carving LGP is according to the different size, engraving on the transparent sheet of mesh grid lines. Using the refraction of grid lines produces diffuse light, making point light source to an area light source.

Silk printing LGOP is according to a certain size, printing reflective outlets on the transparent sheet. Use of printing ink dots to produce diffuse light, change point light source to the plane light source.

Carving LGP, silk printing LGP, the light points density must be according to the size. And these two technologies are difficult to make personal design. Can not be arbitrary cutting, hot bending. At the same time, must be equipped with a diffuser plate when fix in LED panel light, cannot be used double-sided.

Disadvantages: The carving, printing point or line where the visual impact is bigger, will be a little light and shade, not the exact uniform surface. Silk printed with ink dot, so there is light failure phenomenon.

Nano LGP, the making method is add the nanoscale grade light scattering particles when molding the LPG. The nanoparticles point light source or lines sources can be efficiently converted into uniform plane light source.

On the basis of the original nano plate can be arbitrary cutting, hot bending, can be double side use. Can not come with a diffuser plate. Can be made different original mold to cast light of any shape and widely applicable. But not suitable for the crystal light box, because his whole transparency not good enough.

LED Panel Diffuser Plate Analysis

 

Diffuser plate in LED panel light is mainly used for wipe off spot and mesh of LGP (light

guide plate), make the light more evenly. Its main material is PC, PMMA, PS, PP. The most

used is PS material.

PC Diffuser Plate

PC
Polycarbonate

Advantage:
1, With high strength and elasticity modulus, high impact strength, extensive using

temperature.
2, High transparency and free of dyeing.
3, High H.D.T. (heat distortion temperature, is refers to plastic under certain pressure,

began to deformation’s temperature.).
4, Good fatigues resistance.
5, Good weather resistance. Weather resistance refers to plastic suffer sunlight,

temperature, wind blowing, rain ect., emerge fading, discoloration, cracks, pulverization

and strength decline ect. a series of ageing phenomena. The ultraviolet radiation is the

key factor make plastic ageing).
6, Tasteless, odourless harmless to the human body, in line with the health and safety.
7, Forming shrinkage rate low, size stability is excellent.

Overall said, stability of PC is the best. Fire rating high, easy to pass the safety

certification. But PC price is quite expensive, and electrostatic is high, easy to absorb

dust in the assembling. And working time consuming cost too much (PC diffuser has

protective film on both sides, some protective film is very difficult to tear, some tore a

piece should be several minutes). The light transmittance rate of PC is relatively low. It

is about 86%.

PMMA
Polymethyl methacrylate
Which we call Acrylate in short

PMMA Diffuser Plate

Advantages and problem in application:

1. Acrylic plate has excellent weatherability, high surface gloss, and good high

temperature performance.
2. Cost low, cheap material and easy molding. In the early LED panel light production,

acrylic is popular.
3. Excellent printing effect. LED panel light is generally relatively simple. So if

customer has need of a large area of screen printing, first choice is acrylic.
4. The flame resistance: Won’t be spontaneous combustion.
5. High light transmittance, can reach 90%. But also trouble about it. We know that LED

panel light is backlit. High transmittance is difficult to hide speckle. It is easy appear

light spot.
6, And acrylic is double sided with protective film, easy to absorb dust, production will

cost time highly.
7. Acrylic is crisp, easy to break.

PS
Polystyrene

PS Diffuser Plate

PS has a very good chemical stability, thermal stability, optical characteristics, strong

refraction, strong electrical insulating, high radiation resistance and little tendency of

moisture absorption. Which can be used in humid environment. It can resist water and dilute

mineral acids. But, at the same time, it is low impact strength, low weather resistance. If

long exposure to outdoor, appear yellow, brittle phenomenon. Its heat resistance is poor,

the deformation temperature is 70-90 °, only can be used in the environment under 70 °.

Low temperature resistant performance is not good, the embrittlement temperature was -30.

PS has many shortcomings, but use for LED panel light, its disadvantages are less obvious,

and its advantages stand out.  LED panel light is generally used in indoor, working

temperature is 20-60. Climatic influence is small.  High refractivity, will wipe off the

lightspot.  It is perfect for indoor using.
On another way, its small static electricity is good for production.  The transmission rate

is 88%, although can’t reach acrylic’s, other advantages can cover this small shortage.

PP
Polypropylene

PP Diffuser Plate

It is new, need some time more to test.

1. Its toughness is admirable, same as PC’s.
2. High light transmittance, can achieve about 90%
3. Small static electricity, less dusty adsorption
4. The main shortage is soft. If we can good to control the faults, maybe will replace PS

material.

8 Components of LED Panel Light

LED Pane Light Component

LED Panel Light consist of frame, light source, LGP, back cover, LED dirver…

LED Panel Light Component

1. LED Panel Light aluminum frame:

The main channel of the light heat dissipation, which with the appearance of simple and easy.
There are two ways for the frame making:
1) The material can be ZY0907 with the advantage of stamping mould cost low and the processing cost low.
2) On the other side, die casting aluminum frame is good at IP rating can be a little higher, superior surface quality, overall and beautiful, but the upfront input mold cost is higher.

2. LED Light Source:

Regularly use 3528 led bead, also some factory uses 3014 and 5050.
1) 3014 and 5050, the cost is low, but slightly less, the key is that the light network design will be more problems.
2) 3528 photosynthetic efficiency extraordinary and versatility is good.

3. LED Light Guide Plate:

Guide the light to front from the side of LED light source by refraction of the net dot to make the light uniform.
Light Guide Plate is the key points of quality control. If network design is not good, will be seen the whole light efficiency is very poor, which is usually light on both sides of the middle dark, or there’s a high light line at the end of the light, or visible partial dark space, brightness different on a different Angle.
To improve photosynthetic efficiency mainly depends on network design of the light guide plate. The second is the quality of the plate.

4. LED Diffuser Plate:

Will derivate the light of guide plate evenly, can also play a role fuzzy network. Widespread use acrylic diffuser sheet 2.0 or PC material, for cheap one will be PS material.
Acrylic with low cost and light transmittance of a little higher than PC high, at the same time acrylic fragile anti-aging performance is weak.
PC material’s price is a little steep, but strong anti-aging performance. With diffuser plate will be good at light uniform and good at hiding the network of LGP.
PC material the light transmittance is around 90%. Acrylic light transmittance is 92%, the PC is 92%, the PS is probably 80%.

5. Reflective paper:

Will reflect the light on the back of the guide plate in order to improve the light efficiency, utilize RW250 commonly.

6. LED Panel Light Back Cover:

Main function is to seal the LED panel light for better IP grade, use aluminum of 1060 is commonly, likewise make a cooling effect.

7. LED Driver:

There are 2 kinds of led drive power supply, one is using the constant current power supply, the model of high efficiency, the PF value as high as 0.95, cost-effective; Second is the use of constant pressure constant current power supply, stable performance, but the efficiency is low, cost is high, generally use this power supply is mainly for meeting some country’s standard. Actual family uses constant current power supply is safe, because users are hard to come into contact with the power supply, and the lamp body itself using the low-voltage electrical.

8. LED Panel Light Installation accessories:

Suspending, mounting, built in, jump ring…

From the point of quality control, with the aim of improving photosynthetic efficiency to spend additional money on the LED light source and LED light panels are the most effective. From the marketing point, to spend additional money in aluminum frame cover plate pendant, etc can improve the product’s appearance.

More Information about LED Lighting 

8 Advantages of LED Panel Light Features

LED Panel Light Features

LED panel light adopts high brightness LED as light source, suitable for all kinds of indoor lighting, such as hotels, bars, restaurant, coffee shop, home interior decoration, can directly replace fluorescent lamp, and make a higher brightness.

1. LED panel light can be design flexibility

LED is a kind of point light source, designers can combine the point, line and plane flexibly, which can design according to customer’s request all kinds of different shapes, distinct particles of light source, its design is very flexible.

2. LED panel light intensity of illumination

LED panel light is made of the reflective panel with luminous evenly and sealed design. Together with effective light guide plate, and aluminium alloy material. Made the light output uniform and intensity of illumination are higher.

3. The LED panel light produces less heat

LED panel light, thin, heat dissipation function is complete, low power, produce less heat.

4. Long life

LED theoretical service life of 100,000 hours. As calculated by 8 hours a day, the theory of life over 27 years. CPL lamp cup and theoretical service life of more than 100,000 hours or more.

5. LED panel light can be changed diverse ways

LED panel light can be regulated according to different needs and environmental changes of light color, no radiation and dazzle light not only, but also can protect vision, smooth color more moderate.

6. Strong vibration resistance

In the LED panel light, LED light source is a kind of high hardness resin luminous body rather than tungsten wire glass, etc., it is not easy to damage, so the vibration resistance is comparatively high, the environment temperature adaptable.

7. Control ability

LED panel light can be through an external controller for a variety of dynamic program control, can adjust color temperature control as well as the degree of light and shade.

8. Low power consumption

The LED panel light lighting technology is a green lighting technology, the products do not contain mercury, less waste, the manufacturing process is almost no pollution; Semiconductor lighting has the characteristics of recycled, and plays an important role in economic and social sustainable development.

LED Panel Light Features 

6 steps to install LED Panel Light Suspending

 

There are more than 7 fixing ways to install LED Panel Lights in WAHLL Lighting’s LED Panel Light. Like Suspending, Built in, Mounting, Jump ring…
Here follows is the 6 stpes to intall LED Panel Light.

Step 1: Pull the LED driver securing pin up which on the back of LED Panel Light;

Pull Pin-LED Panel Light Installation

Step2: Fix the LED driver by the hole of the LED diver base with the securing pin;

Fix LED Dirver-LED Panel Light Installation

Step3: Pass through the 4 handing holes by the 4 suspended cable line; The little hammer will stuck by the end;

Suspended Candle-LED Panel Light Installation

Step4: Mounting the 4 connecting bridge to the ceiling with Screw. The 4 connecting bridge fixing positing should correspond to 4 handing holes on the LED Panel Light. Push another end without the hammer of suspended cable into the hole of hoist clamp.

Fix Handling Clamp-LED Panel Light Installation

Step5: Adjust the length of the suspended cable to make the LED Panel Light balance and keep on a suitable suspending place:

Adjust Balance-LED Panel Light Installation

Step6: Connect the wire line with quick connector on the LED Panel Light. It’s done.

Fixing Finish Clamp-LED Panel Light Installation

LED Panel Light Installation