Q1: What is the Warranty for the e27 dimmable led bulb ?

A1: For the lamps, we have 2 years warranty. If any quality problems on our side occurred in this period, we will take on the shipping cost and replacement.

Q2:  What is color temperature?

A2: Sowell"s LED Lighting offer lamps in warm, natural, pure and cool white with color temperatures measured in  Kelvin (K). The lower the color temperature is, the warmer the light given by the LED:

• Warm white = 2700K-3200K
• Natural white = 4000K-4500K
• Pure white = 5000K-5500K
• Cool white = 6000K-6500K

Q3: What is CRI of e27 dimmable led bulb ?

A3: CRI is a figure which feedback the real objects colors. Higher CRI with higher cost. For LED tubes, the CRI is mostly 70-75Ra, and 80Ra with higher cost. But there are some suppliers write a high data to attract clients, please note.

Q4: Is custom logo/design workable?  

A4: Yes. We"re experienced in OEM. Logos can be done by engraving, stamping, silk printing, pad printing, offset printing, etc. 

Q5:How does your factory do regarding quality control ?

A5.Quality is priority. We always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained CE, ROHS certifications for e27 dimmable led bulb.

 Packaging:Up to MOQ3000PCS,we can do colorbox or customers" requirements.

Shipping:Ningbo Port.

Delivery time:30-35days.

1. Welcome OEM.

You can use your own brand or ours. If you use our brand, our professional design team will help you design the packing

2.Quality control research team

1. Before the order can be confirmed finally,we would strictly check the material , dimension of the sample step by step

2. We salesman ,also as a order follower,would trace every phase of production from the beginning.

3. We have a QC team ,every product would be checked by them before packed

100% of the lamps will be tested and keep lighting for 24 hours to test its quality reliability, and we will also test its temperature after 24 hours" lighting. Then after it is cool we again test 100% of the lamps to see if it still work well. Each lamp should pass all these QC procedures before packing.

4. We would try our best to help clients solve  problems when they occurred

3. Quality control Professional import inspection equipment

1. Load test(Electrical spec. test)

2. Aging test

3. High- voltage test

4. Grounding conduction test

5. Install test.

6.Adhesion test.

3.Certification: CE, ROHS, INTERTEK, ITS, CQC, etc.

   Certificatons:                                                                      

                                            Ningbo Sowell Lighting Co.,Ltd.

We are your best choice for supplying good quality products from China.

Ningbo Sowell Lighting Co.,Ltd.is a modern enterprise specialized in the manufacture of LED lamps and other lighting source based on lighting developing trend.

Many customers have already established the relationship of mutual benefit and friendly business with us.

The company is constantly developing through quality&innovation and to keep new and special products in order to comply with the international trend.Meanwhile,we are specialized in OEM and ODM products to meet different customer needs.The company carries out strict production.Management Regulations and seeks perfection.Products quality is strictly controlled from the component to the final product.

Our products have CE,RoHS,FCC,GS,LVD,EMC approval,etc..We hope to establish a global sales network and share the resources of a return.We try to bring new products with all kinds of special designs through extensive experience and technology for general lighting industry.

Try to communicate with us,we are sure you will find more forture and more happiness with us.