4. Company brief introduction
Changzhou Chenglian power supply Co.,LTD has been presented for over 16 years on the
market, winning a leading role in domestic and international scene, designer and manufacturer
of power supplies for commercial lights, industrial lights, residential lights and LED display
screens. Classified by AC/DC and DC/DC series. Especially rainproof/waterproof series and
LED display screen power supplies occupied 60% of the whole market.
Equipped with 8 production lines, advanced automatic production machines and test machines,
450 workers, two R&D departments, 15 skilled engineers in house, 20QCs, 20 salesman,
achieved 80 millions USD turnover in 2016, get involved project like Beijing Olympic Games,
Shanghai Expo, Shanghai east TV tower, Hilton hotel, Nanjing
Summer Olympic games, shanghai huge sky screen……..hundreds of project using our power
supply each year.
Most of our products get CCC/CE/EMC/LVD/ UL/TUV/SAA/KC/CB/ROHS certificate passed
OEM/ODM/Distributors are welcome to contact with us, we will be your powerfully partner
Behind your back.
Join us together to light and green the world with energy-efficiency Power supply.
6. Product Series
Power Supply for LED Display screen
1.For single/two color running lines, full color running lines
2.For HD LED display screens
3.Car LED displays
Power supply for commercial and resident LED lights
1.Rainproof/waterproof/IP20 enclosed power supplies for led strips,
led modules, LED flood lights, highbay lights, LED panel,
downlight, LED tubes, spotlights.. Constant current/constant
voltage type
Power Supply for industrial use
1. CCTV security cameras
2. Laser cutters
3. Smart industrial equipment and machines
4. Industrial LED lights, gas station lights, tunnel lights
Production
Line
7. LED driver for display screen
Output power: 100W 150W 200W,250W,300W,350W,400W
Feature:
Universal AC input/Full range,90V-264V
Output: DC 2.8V,3.3V,3.8V,4.2V,4.5V,5V,7.5V,12V,24V
Build-in PFC function, Build-in active PFC function, PF>0.92-0.98
Conversion efficiency could reach up to 91%,
Free Air cooling Convection, no fan noise, super quiet
Protection: Output overload, short circuit protection, over voltage, over temperature
Warranty: 3 years
Compliance:
Safety standard: GB4943,EN60950,UL60950
EMC:GB9254,GB17625,EN55022 FCC Part15B
Temperature:
working temperature:-30-+70℃
Relative Operating Humidity:5%-95%
storage temperature:-30-+70℃
Storage Relative Operating Humidity:5%-95%
8.
9. Output power: From 25W-600W IP44 rainproof, IP67 waterproof, IP20 enclosed
Feature:
Universal AC input/Full range,90V-264V
Output: DC 12V 24V 36V 48V
Build-in PFC function, Build-in active PFC function, PF>0.95
Conversion efficiency could reach up to 91%,
Protection: Output overload, short circuit protection, over voltage, over temperature
Warranty: 3-5 years
Drive mode: Constant voltage/constant current
Compliance:
Safety standard: GB4943,EN60950,UL60950
EMC:GB9254,GB17625,EN55022 FCC Part15B
Temperature:
Rainproof & waterproof:
working temperature:-30-+70℃,Relative Operating Humidity:5%-95%
storage temperature:-30-+70℃,Storage Relative Operating Humidity:5%-95%
IP20 enclosed type:
Working temperature:-10℃-+50 ℃, Storage temperature: :-20℃-+85 ℃
Power supply for commercial and resident LED lights
10. IP44 Rain proof IP20 Enclosed case
LED driver
IP67 waterproof
11. Power Supply for industrial use
Feature: Single/Double/triple/Quad Output
Output power: 10W-4000W
Built-in EMI filter
100% full load burn-in test
Universal AC input range, 100-250V 47-63HZ,
DC Output:3.5v/5V/9V/12V/15V/18V/24V/27V/36V/48V/110V
Output adjustment range:±5%-±10%
Output overload protection:110-150%
Output voltage protection:115-150%
Withstand voltage: I/P-O/P:1.5KVac/1min
I/P-F/G:1.5Kvac/1min
Rise time:50ms
Hold up time:20ms
Working temperature:-10℃-+50 ℃
Storage temperature: :-20℃-+85 ℃
Protection: Output overload, short circuit protection, over voltage, over
temperature
Compliance:
Safety standard: GB4943,UL60950,EN60950
EMC:GB9254,GB17625,EN55022, class A
12. Product Procedures
1.SMT:PCBA tiny parts
plug in
2.Plug in components
manually
3.Wave-sordering
4.Cut off spare pins 5.First time function test 6.Assembly
13. 7.3KV hi-pot test/0.8S 8.ATE aging test 9.Function test after aging test
10.Packing 11.QC sampling inspection test 12. Deliver to warehouse
14. Automatic production equipment
PCBA board tin printing SMT High temperature
furnace
PCBA program test
machine
Wave Soldering Three-proof coating Function test ATE aging test
16. Quality Insurance: Five times function test
2. Hip-pot test:
3KVac/ 0.8S
3.Funciton test:100% Burn-
in test 1-4hours depends
On output power
3.Burn-in test: ATE test
1 hour
4.Function test:100% re-test after
burn-in test
5. QC: finished product
sampling, AQ0.65
1.Function test: check if there is
any dry/empty welding or missed
components
19. QUALITY & ENVIRONMENTAL POLICY
OUR CLIENTS
We owe them careful
listening and continual
improvement in our
products and services
quality
OUR SERVICES
Improve continuously our lead times and
service performance;
Ensure the quality and reliability of our data
and information.
OUR PRODUCTS
Design and manufacture products more and
more:
-efficient
-Reliable
-innovative
-eco-friendly
OUR TEAMS
Promote teamwork and develop skills;
Take care of staff satisfaction by
improving working environment.
THE ENVIRONNMENT
Ensure that we comply with legal and
regulatory requirements;
Prevent any form of pollution, of waste,
and drive our actions toward continual
improvement;
Reduce our consumption, optimize waste
sorting and recovery.
