Please leave the message for Common anode or Common cathode you will ,thank you for your support.
LED normal operating current is generally 1MA-20MA, the larger the current the higher the brightness.Different colors of the
forward voltage drop is different, red, yellow green, orange is about 1.8V,Emerald green, blue, white, about 3.1V, LED voltage
constant parallel drive for large-size digital tube, LED is connected in series,The total pressure drop of the series must be
multiplied by the number of LED N., LED driving voltage must be greater than the totalvoltage to light.
1.Aliexpress supports Visa , Boleto , MasterCard ,Maestro Debit Card ,Western Union,Webmoney,QIWI and wire transfer via bank.
2.If you still have any question for payment, please feel free to contact us freely .
1.When you place an order, please choose a shipping method and pay for the order including the shipping fee.
2.We will send the items with 2-5days once the payment is confirmed by the system.
3. Any import Taxes is not included in the shipping fee, buyers are responsible for the customs duties when it is occurred .
4.Any request to get the refund ,please send back the items back to us. Customers should pay the freight back to China if problems if yours .
on the other side, if problem is ours we will pay the shipping fee.
5.Express shipping (DHL,Fedex,UPS,TNT etc) and post service are provided for the shipping. 3-7Days will be arrived to your door by Express shipping
Post service Such as China Post Register Air Mail ,Singapore post, Hongkong Post Air Mail reach most countries within 15-45 business days,
Some destination and other factors may take up to 60 business days.
Please pay attention : Order less than 7 USD will not have tracking number but you will get the items for sure,
please contact us to get a refund or resent if you don’t get within 60 working days .
1.Your satisfaction and positive feedback is very important to us, please leave positive feedback and 5 stars if you are satisfied with our items and service .
2.If you have any problems with our items or our items or service , please feel free to contact us first before you leave negative feedback .
We will do our best to solve any problems and provide you with the best customer service .
1. Service to worldwide,Wholesale ,retail, drop shipping , Customized support.
2. Working time: (UTC+8) 8:45-12:00am; 13:00-22:00 pm .Feel free to contact us