hot sale 4*12W COB ceiling LED grille downlight

Hot sale 4*12W COB ceiling LED grille downlight

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Q1 How do you evaluate LED products?

Lumen output is only part of the story and can be misleading. To fully evaluate an LED product one needs to review the overall system efficiency,optical control, thermal management of the LEDs, and know at what point in time the fixture will reach 30 percent lumen depreciation. Products with good optical efficiency and thermal management will be able to deliver more lumens, on average, than traditional HID products.

Q2 How long will my LED Light last?

LEDS last up to 8 times longer than CFL and Incandescent lamps and you can expect at least 35,000 hours of use from your LED Lamp.

Q3 How should i choose the color temperature ?

3000K, warm and appealing, for leisure atmosphere and accent lighting

4000K, natural effect, ideal application on public places.

6000K, bright and efficient, for pleasant and healthy office environment.

LED Downlight  is popular for store,hotel,shopping malls,gellery, museum,office

Q4 Does OPTE have ability to do OEM products? 

 In the past years OPTE has gained a lot of work on OEM of LED lighting and LED strip lighting. And thanks to these works, we gained a lot of valuable OEM experience. We will still strictly follow the principal that we won’t disclose or sell customer’s unique designs to any other third party.

Q5 How your company control the cost of the lights ?

We have a industrial chain which involve a completed system like Housing Die-Coasting , LED encapsulation and Driver R&D Departments , to make sure you our lights in competitive and high quality

Q6 What should i do if any lights not good in quality

Each lights under strictly quality inspection and 24 Hrs aging test before sending to you , we make sure the reject ratio under 3‰ , unfortunately , if any light failures in quality within warranty period , please offer the proof (Picture Video) to us ,we will replace & fix free of charge and bear the freight cost

Q7 Is there any cheap shipping cost to our country ?

 We have long term cooperation forwarder in DHL FedEx ,Air freight sad Sea freight, we will try our best to get the best freight rate for you