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FAQ

Q: What products LONGSEN will develop in the next year?

A: Elstar is devoted to innovation in the latest LED technology. We never stop researching new LED lights since the establishment. We keep the valued customers posted of newsletters on the development every week. You can get the news after subscribing in our mail list.


Q: What is the main market of LONGSEN

A: We are selling more to EU and North America because the markets have high quality standard for LED products. The rate accounts for 70-80% of our turnover. But other new markets are increasing demand of the new LED technology. We are also optimistic about the markets for other American and Asian regions.


Q: What LEDs do you usually use for your LED products?

A: For high power LED luminaries we mainly use Cree and Edison LEDs, We use some Philips as well. We also consider using more multi-chip LED brands like Bridgelux and Sharp, as the multi-chip technology will be widely used by manufacturers.


Q: What is the lead time of LONGSEN?

A: Usually we ship orders in 1 week. But it will take a little longer if we have heavy burden of production task. It also takes more time for customized products.


Q: Can LONGSEN accept customized assembly or offer OEM products?

A: Elstar has gained a lot of experience on OEM assembly of LED strip lighting. The strips can have different size, layout, customer logos and labels. We also want to apply the experience to LED luminaries as we have excellent design and engineering team. Because we have our own CNC processing machines, we can quickly work out prototype for LED fixtures. We will strictly follow the principal that we won’t disclose or sell customer unique designs or jointly developed products to another third party.


Q: Do you have warranty for products?

A: Yes, we have 2 and 5 years warranty for different kinds of products. During the period, if customers have the approval showing product quality issues and if certified by Elstar engineers, we would request customers to ship back the failure parts and replace new items with the transportation charge being paid by us.


Q: Does LONGSEN design its products?

A: Yes, Elstar designs and assembles all the products we are selling. Our engineers have abundant knowledge of optics, electronics, mechanical and thermal management, as well as light control technology. Some of them have successful experience to design lighting products for world famous brands. Our basic principle to design internal driver and circuit is safe under EMC/UL list possibility and reliability.

CONTACT US

Contact: Marketing Department

Phone: +86-595-85138252

Tel: +86-15805096966

Email: Info@longsen-lighting.com

Add: No.26, East Honglian 2nd Lane, Siming District, Xiamen, China.