SHENZHEN YULIANG OPTOELECTRONIC TECHNOLOGY CO., LTD

WHO ARE WE?
Shenzhen Yuliang Optoelectronic Technology Co., Ltd is committed to creating highquality, affordable,well-designed and energyefficient LED lighting that make it easy for customers to sell, electricians to install
and endusers to save energy.
Founded in 2001, YLL has a vibrantly growing infrastructure of manufacturing facilities, and engineering
capabilities that ensure great product design and quality.
YLL has its own led package factory which is over 6000sqm and more than 30 automatic production lines for
LED well-designed, professional grade lighting.
In addition to great products, YLL also provides lighting design services to anyone who needs assistance. Feel
free to reach out to us on the phone, by email or on our website, and your query will get our due attention
and prompt reply.
WHY Choose US?
1.The strengthness of R&D. There are over 20 professional R&D engineers specialized in LED lamp and a
standalone, enclosed LED packaging laboratory in Yuliang, in which we can conduct the high and low
temperature thermal shocking experiment, sulfide-proofing experiment, constant temperature and
humidity, and LM-80 standard 6000h continuous light decay testing, etc. Our products have obtained
many patents.

2.The strengthness of manufacturing. We have over 10 years’ experience in LED packaging, more than
6000 square meters modern LED dust-free workshop, and we originate the ‘Three proofings’ technique to
optimally solve the high dead lamp,
sulfide, moisture problems in SMD LED, to truly achieve the moisture proofing, dead lamp proofing, sulfide-
proofing in SMD LED.
3.The strengthness of technology. Yuliang first applies the‘Double packaging’ technology to achieve the
mass production of 3528 convex head series(50-60degree) and 5050 convex head series(160-180degree)in batches.
4.The Quality Assurance. Yuliang runs the production strictly according to the ISO9001:2008 qualitymanagement system, the white color bin strictly according to the United States energy star IES LM-80, many of our products have been certified by IES, LM-80, SGS, ROHS, EN62471.

Our Promises
We promise that 1 bin will be stably supplied to those customers who purchase the regular
color temperature products in the long term. The samples as customers wanted will be led within 3days,
and a small batch order within 5-7days, regular products within 1-2 days. And complaints of customers will
be replied within 24 days, any problems will be promptly and efficiently solved.
Two-year Warranty
Return or replacement within two years if there have any defected product or malfunctioning product or broken product.
Exchange & Return Policy
1.The shipment cost should be taken by supplier if there have defected product or malfunctioning product or broken
product within two years.Replacement will be sent to you in your next order if you don’t want to return.
2. 0.3% free spare part for volume order,in the same time,we will give you replacement as compensation with next
order if faulty product rate reach to 0.3%.

National Hi-Tech Enterprise
Ten years Focused on SMD LED Package
Has a full set of LED Package Experimental Independent laboratory
Auto Lights/ Outdoor Lighting Project Light Source priority partnership
Pass U.S.Energy Star LM-80/ EU EN62471
Honesty is the best policy for long-time business.Quality is the bridge between YLL and you.