Quality is priority. We always attach great importance to quality control from beginning to the end of the production. Every product will be full assembled and carefull tested before packing and shipping.

How do solar photovoltaic (PV) panels work?Shanggui answer your question here:Solar panels absorb the sun's energy throughout theday and convert it into direct current (DC) electricity. Most homes andbusinesses run on alternating current (AC) electricity, so the DC electricityis then passed through an inverter to convert it to usable AC electricity. Atthat point, you either use the electricity in ...

Solar panels system Quality Control in Shanggui In manufacturing, quality control is a process that ensures customers receive products free from defects and meet their needs. When done the wrong way, it can put consumers at risk. For example, the recent defect found in Takata airbags resulted in the biggest automotive recall in history. The recall includes almost 69 million airbag inflators and ma...

Q: What's your warranty terms?A: We offer different warranty time for different components, please contact us for details.We provide a 10years material gurantee for our modules . In addition, 90% power output gurantee for 10years , and 80% power output gurantee for 25 years of the module life are provided.Solar system include on grid and off grid system, detail as follow: solar moduel ,inverter ,...

Invoicing and payment termsPayment terms - commonly used invoice payment terms and their meaningsYour invoice payment terms and conditions can impact the number of days it takes you to get paid. Without them, you aren’t communicating when a payment is expected, as well as other conditions like your preferred payment method and any consequences of late payments.This list explains many of the paymen...

Q: What's the deliver time?A: Small quantity by air: TNT DHL FEDEX China Post.Deliver Within 7 days after order confirmed by prepayment received.B:Large quantity by boat30% TT advanced +70% TT balanced before ship the goods. Delivery within 15 work day after got advanced payment

We can offer you free samples and you pay for ths express cost.The use of product samples is an essential part of marketing strategies employed by both small and large corporations. Samples serve many functions when incorporated in an overall marketing campaign and can boost initiatives built around the new product. Businesses that offer samples focus on expanding their customer base. Here are so...

Shanggui answer your question here:The Qinhuangdao Shanggui's solar panel has got ISO 9001 and our junction box passed TUV.Photovoltaic projects rely on high quality products that stand the test of time for inputs ranging from engineering design to financing and more. Shanggui Solar’s products have always maintained high reliability and solid performance based on our commitment to our quality-firs...

Shanggui answer your question here: Because Shanggui is professional manufacturer of solar accessories for more than 11 years. Shanggui has excellent raw suppliers and strong engineering team for solar prodcut.1. Our team: prompt response, one to one service. 2. Experience: 11years exporting and history3. Our factory cover more than 3000m24. Customized: strong R & D team to meet the various needs....