China distributor led plante 20W UFO led grow lamps for indoor plants

You must to know

? Wavelength 280 ~ 315nm

    This wavelength is already ultraviolet light. It has the function of direct repressive growth for all kinds of animals, plants and            

    even fungi, and has little influence on morphology and physiological processes.

  ? Wavelength 315 ~ 400nm

    This kind of light wave is also a far-ultraviolet light. Although there is no ultraviolet damage to plants, it has no direct effect on          

    plant growth, and chlorophyll absorption is less, affecting photoperiod effect and preventing stem elongation.

  ? Wavelength 400 ~ 520nm (blue)

   Such wavelengths can directly develop the roots and stems of plants, and have a large absorption ratio for chlorophyll and            

   carotenoids, and have a great influence on photosynthesis.

  ? Wavelength 520 ~ 610nm (green)

   Green plant rejection push, the absorption rate of green pigment is not high.

  ? Wavelength 610 ~ 720nm (red)

   The chlorophyll absorption rate of plants is not high, but this wavelength has a significant effect on photosynthesis and plant  growth rate.

  ? Wavelength 720 ~ 1000nm

   Such wavelengths are generally infra-red wavelengths, which have low absorption rates for plants and can directly stimulate        

   cell elongation, which may affect flowering and seed germination

  ? Wavelength >1000nm

   The wavelength of the laser light that has been approached has been converted into heat.

  Q1. Can I have a sample order for led light?

  A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

  Q2. What about the lead time?

  A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity.

  Q3. Do you have any MOQ limit for led light order?

  A: Low MOQ, 1pc for sample checking is available.

  Q4. How do you ship the goods and how long does it take to arrive?

  A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping  also optional.

  Q5. How to proceed an order for led light?

  A: Firstly, let us know your requirements or application.Secondly, we quote according to your requirements or    our suggestions.
      Thirdly, customer confirms the samples and places deposit for formal order.
      Fourthly, We arrange the production.

  Q6. Is it OK to print my logo on led light product?

  A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

  Q7: Do you offer guarantee for the products?

  A: Yes, we offer 2-5 years warranty to our products.

  Q8: How to deal with the faulty?

  A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than      0.2%.

      Secondly, during the guarantee period, we will send new lights with new order for small quantity.       For defective batch products, we will repair them and resend them to you or we can discuss the solution             including re-call according to real situation.

Complete after-sales service system

1.the quality problem: we check every product carefully before the delivery, and provide 2-3 years warranty time, if you find problems please contact us in time.

2.the quantity problem: when receiving goods please check quantity, if you findquantity is error, please contact us in time, we help you reissue after verification. (led manufacture 1800lm led tubes)

3.other problems: about the product performance and safety knowledge, you also can consult our engineers.