Email:ceo@crescentled.com Tel:+86-755-81735121
Shenzhen Crescent Optoelectronic Co., Ltd.
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What is cob Package?
COB package the full name is chips on board, it is a technology to solve the problem of heat dissipation of LED. Compare...
Packaging Differences and Advantages of SMD and COB
In the production of led, there are different packaging technologies, including cob led and SMD led. What is the differe...

FAQ

  1. When Was Crescent Founded?
    2010.
  2. What Is Crescent'S Main Product?
    High Power LED, SMD LED, COB LED, DOB LED.
  3. What Is The Turn Over For 2017?
    226 million RMB.
  4. What Is The Minimum Order Quantity?
    100K.
  5. Delivery Time For Sample And Mass Production?
    3 working days for sample order and 7 working days for mass production.
  6. How Is Crescent's R@D Ability?
    51 patents, nearly 40 skilled engineers, national approved CNAS lab.
  7. How Do You Control Your Quality?
    We have strict quality control from material, production and shipment.
  8. How Is Crescent Brand?
    Crescent is a famous brand in China.
  9. What Is The Payment?
    Bank transfer(TT), 30% deposit before production, remaining 70% payment before delivery.
  10. Will You Offer Some Percentage Of More LED Lighting Source With My Order For Replacement?
    No need. We have strict quality control before delivery, and offer 2 years' warranty for our LED Light Source.
  11. Why Do You Say That Your Products Are With High Price Performence? What's The Point?
    Quite strict with our material, high standards for quality control, pick lowest price get the best products.
  12. What's The Difference Between EMC And PCT Bracket In LED?
    ①. The main material of EMC scaffold is epoxy resin, which belongs to thermosetting material. PCT is thermoplastic material. 
    ②. According to the high temperature resistance and UV resistance nature, PCT is only suitable for 1W but EMC can be upto 5W.
    ③. In terms of price, PCT is much cheaper than EMC.