Customrized High Brightness Cold Cathode Fluorescent Tubes White Led Backlighting
Backlight is a form of lighting used on LCD displays. The difference between the backlight and the forelight is that the backlight shines from the side or the back, where as the forelight, as the name implies, shines from the front. Its purpose is to increase illumination in low-light environments and brightness on computer monitors and LCD screens, producing light in a similar manner to CRT displays.
The light sources may be incandescent bulbs, electro-optic panels (ELP), light-emitting diodes (LED), cold cathode fluorescent tubes (CCFL), etc
For operation above 25 c,The ifm & Pd must be derated. the Curent derating is -7.2mA/ c for DC drive and -1.72 mA/ c for Puise drive,the Power dissipaton is -1.5mw/ c.The product working current not more than the 60% of the Ifm of Ifp according to the working temperature.
We usually ship goods By DHL, UPS, EMS, Singpost airmail, and HongKong Airmail.
DHL: 3-5 days
UPS: 5-7 days
EMS: 10-15 working days
Chinapost/HongKong Airmail: 7- 25 working days. At most 45 days.
If you have not received the goods during the normal time, please contact us for checking the package status timely online or by email.
If you have any prodcut quality problem, you can send it back to us with the original condition,we will repair or exchange new one for you.
If you have any using problem of the products which buy from Qihang, please feedback to us first, and we will discuss the issue with you. Via our technical support, we can dig out your using problem via our technical support in most of cases.
Lost Products: If products get lost in delivery, or you still do not get your item for a long time, please contact our customer service timely. We will deal with this ASAP. Please do not deal with it all by yourself, we want you communicate with us. Usually, we will provide tracking number and tracking link timely. If products get lost on the way and we get confirm from couriers, we will arrange redelivery for your products. If you want ship it through express, then you need to pay express shipping fee.
If you have technical problem with the product you received from us, please contact us online or by email
Remote help service: If your problem needs to be solved by remote help by our engineer, please download the teamviewer software, install it on your computer, then give us ID and password for remote help.
1> ISO9001 certificated Factory supplied
2> RoHS Compliant, Lead Free, Reach Compliant
3> Competitive price and Short lead-time
4> International Approvals, Military Specifications
5> In stock, samples lead-time: 1 -- 3 days.
6> Small MOQ