Do you have a return policy or exchange policy in warranty
Yes, we are very pleased to offer an excellent after-sale policy. Within the warranty period, we replace or repair the bad LED DRIVERS &LED LIGHTING PRODUCTS that caused by our quality problems. We’ll charge the replacement or repair If the LED DRIVERS&LED LIGHTING PRODUCTS are damaged by wrong installation or utilization.
How to settle the dispute
If a dispute occurs between our company and clients, we consider firstly always the friendly negotiation for a good result. If the negotiation cannot make a good result, we are very sorry to file an appeal in local court.
How many back-up units do you deliver each order
Though we are confident in the product quality, we prepare always enough back-up units at 0.2% of the order quantity in case of emergency.
What is the minimum order quantity
We’re very glad to have your order more than 10 pcs for regular orders or 1000pcs for OEM&ODM orders.
How to pay
Paypal , T/T, L/C or other feasible payment modes according to the agreement or contract.
What are the types of LED Drivers for LED Lights
There are many types of LED Drivers: Internal divers &External drivers; Constant current Drivers &Constant Voltage Drivers etc. Each type is designed to operate LEDs with different electrical requirements. SG TECH line of LED Drivers includes also AC-DC LED DRIVES, dimmable LED DRIVERS, Waterproof LED DRIVERS for outdoor use etc.
How to choose suitable LED DRIVERS for light
Led Drivers supply the power for LED LIGHTINGS, so choosing the right LED DRIVERS is very important for the quality of LED lighting. First, you need to know how to identify a proper LED DRIVER in good quality. Here are the main questions you should have the answers to :
What are the main parameters of DRIVERS(Power, Voltage, Efficiency etc)
What type of LED LIGHTINGS will be used(Bulbs, spotlight, LED tubes, Downlight ETC)
What type of LED chips will be used and how many?
What are the size limitations of drivers?
What are the requested features(dimming, waterproof, etc)
Please verify all these information before choosing your right LED DRIVERS. Of course, we are very pleased to answer your questions about LED DRIVERS in order to find the correct drivers for your applications. If you have any specific application, contact our driver engineering team for support. We offer always the driver redesign &design services to our customers.
How do I get free samples?
We offer always good samples to our clients in time. Normal Samples can be delivered in 24 to 48 working hours if we have the stock. The customized sample will be delivered in 7 working days. If you want the free sample, please don’t hesitate to contact us. we charge only the expedition fee for samples and refund the expedition fee after your first trial order.
Attention, We reserve the right to deny applications at our discretion.
What is the warranty of QUARK lighting?
Normally we provide a warranty of 2 YEARS for the LED POWER SUPPLIES (DRIVERS) and LED LIGHTING PRODUCTS. As you know, the longevity of the LED drivers depends on every piece of electronic components used. We guarantee the high quality of electronic components. Meanwhile, we offer other warranty such as 3 years or 5 years as per your request.
We promise always the quality first to our clients.