1.Your inquiry related to our products or price will be replied in 24hrs

2.OEM&ODM,any your customized lightings we can help you to design and put into product

3.Distributoership are offered for your unique design and some our current models

4.Protection of your sales area,ideas of design and all your private information

5.Best cost performance and perfect service before and after sales

CE and Rose Certificate

Company Introduction

SHENZHEN LIYI OPTOELECTRONIC Co., Ltd is a Chinese high-tech optoelectronics display enterprise which specializes in the research, development, production, sales,construction and service of LED display since 2009. LIYI LED established strict quality control of LED components, LED display and the whole set of video systems, devoting to provide the most suitable indoor or outdoor display solutions from design, manufacturing, installation and maintenance.

Our main products: indoor and outdoor full color LED display, LED pharmacy cross,
LED single color moving sign display, LED display accessories.

Our products are widely used in pharmacy, telecommunications,financial securities, electricity, transportation, schools, hospitals, supermarkets, hotels, weather, real estate, sports, stage, restaurants, entertainment, theater, municipal advertising and government departments etc., and exported to Europe, Asia, North America…

Q1: What is the brightness, viewing angle and wavelength of the LED? 

A: Luminous Intensity is equal to the amount of luminous flux emitted into a very small solid angle at a defined angular orientation from the light source. The measurement for luminous intensity is the candela. Symbol is Iv. 
Viewing Angle is the total cone angle in degrees encompassing the central, high luminous intensity portion of the LED beam from the on-axis peak to the off-axis point where the LED intensity is 50% of the on-axis intensity. This off-axis point is known as theta one-half ( 1/2). Two times 1/2 is the LEDs' full viewing angle; however, light is visible beyond the1/2 point.Wavelength is the distance between two points of corresponding phase and is equal to waveform velocity divided by frequency. It defines what color human eyes could recognize.

Q2: What chip do we use for LED display module?

A: The LED chip we use is Taiwan Epistar. 

Q3: What is the warranty of our products? How is the after-sale service?

A: All our product offer two years warranty. And for every batch of goods, we offer spare LEDs and IC or spare module for repair. Also clients could send broken modules, we will repair it for free.

For more details , please contact:

Molly Liu   

SHENZHEN LIYI OPTOELECTRONICS CO.,LTD

TEL: 86 0755 26078858/ 86 15920076940

EMAIL: sales05 (at)

SKYPE:  liyisales05

WECHAT: molly_liusuyun

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