Due to the LED panel light has not been issued as a national standard at present, in 2014 China electronics standardization technology association and China gather industry jointly promoted a foundation announced on both sides of the common standard GT004-2012 "general indoor lighting lamps and lanterns of LED panel", the LED panel light made regulations on the safety and performance, specification of LED panel light quality requirements, as a reference basis for the flat lamp manufacturer production, also can make the market management laws. Reference on both sides of the common standards, in the face of how to control the quality of LED panel light, are discussed.

1, the structure characteristics

Compared with other lamps and lanterns LED panel light structure is unique, mainly by the light source, light guide, diffuser, reflection paper, driving power, and so on, more than any other lamps and lanterns, diffuser, a reflection of light guide plate paper, such as the LED backlight structure of the products.

(1) the LED light source

LED panel lamp manufacturers in the use of LED light sources basically adopt SMD patch series, such as 3528, 3014, etc.LED panel lamp manufacturers facing the market are dynamic, the manufacturer will choose according to the actual needs of customers for products meet the design requirements of the light source. The choice of product performance improvement of the LED light source is very critical, and is one of the important factors that improve the quality of the LED panel light.

(2) guide plate

Is the role of guide plate LED point light source the light through the optical technology into a surface light source, the side of the LED light refraction make the light from the front even exported by branch. At present mainly adopts printing forms of the light guide plate, guide plate quality will directly affect the product's brightness and uniformity, requiring good pervious to light performance.

Guide plate is the key point of LED panel light quality control, site design is bad, the overall smooth effect is bad, the light is not even, also can appear on both sides of the middle light there's a light at the end of the dark and into the light brightness, visible partial dark space, different angles are inconsistent, and so on and so forth. To improve the photosynthetic efficiency of the light guide plate depend mainly on the design of the network, the second is the quality of the plate, should choose the qualified panel with high light transmittance. led explosion proof lights https://www.eneltec-led.com/products/led-explosion-proof-lights

(3) diffusion plate

Diffuser's main role is to uniform light guide plate export and let light distribution more uniform. When the light beam spreads, the reflected light will spread to different perspectives, and then by the positive injection of the light guide plate, use a variety of density, size of diffusion, make uniform glow of light guide plate, improve the brightness of the light guide plate. Can also play a role fuzzy network.

Diffuser generally use the acrylic sheet of 2.0 or PC material, almost is PS material.Yakel has a lower cost and light transmittance of a little higher than PC, and anti-aging performance is weak; The PC price is a little expensive, but strong anti-aging performance. Diffuser in mount later can't see the site, and light transmittance to around 90%. Acrylic light transmittance at 92%, a PC is about 90%, the PS is about 88%, manufacturers can according to the requirements in terms of diffusion plate material choice, most manufacturers are using acrylic material at present. best led headlights http://bestledheadlight.com/

(4) reflective paper

Is the role of reflective paper guide plate under the overflow of total reflection of light, LED light, make full use of as far as possible choose reflectance close to 100% reflective paper, to maximize the light use, improve the output of the LED panel lamp brightness, for RW250 commonly.

(5) HouGaiBan

The main function is to seal the LED panel lights, generally USES the aluminum plate, and can also heat dissipation effect.

(6) drive power supply

There are two kinds of LED drive power supply, one is to use a constant current power supply, the model of high efficiency, PF value as high as 0.95, cost-effective; The second is the use of constant pressure constant current power supply, stable performance, but low efficiency, high cost, the use of the general power supply is mainly for export, the other certification requirements. Actually, a family using a constant current power supply is safe, because users are hard to come into contact with the power supply, and use safe low voltage lamp body itself.