About Haisheng:

Shenzhen Haisheng Optoelectronic CO., LTD is a professional LED display, HSTV manufacturer. 
It is a high technology which is specialized in researching, designing, manufacturing and exporting 
all kind of LED products. We have our own professional R&D department, engineers, sales department, 
experienced QC and workers.

Currently we design and produce our new type of products, such as HSTV, double
sided led display, one whole body outdoor advertising led display, one whole body led window display.

We focus on looking for the best solution for every customer’s projects and also glad to see that we receive
good feedback and win long term relationship. Win-win business is what we pursue all the time.

Advantageous descriptions:
1. professional technical support + quality promise
2. CE ROHS FCC ISO9001 certificate
3. Alibaba + TUV assessment supplier approved
4. 2 year waranty + 1 set of spare part for free

Basic promise from Haisheng:
A: Full automatic production to control our high quality, best color consistency and get better performance.
B: Energy saving, low power consumption and long lifespan 100,000 hours (about 10 years).
C: We guarantee that the equipment we provide are brand new, complete and unused.
D: Good heat dissipation capability and high waterproof because of the unique design of vent fan (like shutter).
E: Our quality control throughout every process from materials-production- test-package-delivery

l our products use big size chip of led to keep brightness and stability

lour products use Epistar/Silan chip led with 2nm wave length error, better than market widely used

2.5nm wave length error. 

Our quality control for LEDs (fully automatic plug in machine)

l Machine wavelength test only tolerate ±1nm error. To ensure the color consistency of our led screen.

l Can avoid the static damage on LEDs by manual plug in. To keep their long lifespan.

l Automatic plug in, LEDs firmly fixed on the PCB. To reduce the possibility of LEDs loosening or falling off from PCB and cause LEDs unlighted after led screen working a period of time.

Our quality control for module (automatic wave soldering and best module design)

l Automatic wave soldering ensure our tin points uniform and full, can greatly avoid the cold solder, false solder, dead solder. To guarantee the stability of our led screen.

l Advanced technology IC built-in PCB front, IC fully sealed with heat conductive glue and PCB conformal coating process to protect them from water, oxidation and corrosion.

Our thoughtful consideration for cabinet

l Our outdoor led cabinet is sealed and louver style to ensure our screen good heat dissipation and high waterproof.

l Cabinet size and color can be changed according to customer’s requirement.

l Baking paint process for our cabinet, to protect it from oxidation and corrosion by outdoor different weather.

Our test control:

l  72 hours aging test at least to keep the consistency of the whole led display 

l  water slaps to test the waterproof level, but not water flow

l Vibration simulation test, to ensure our led screen will not be damaged during transportation