The LED hard lamp bar is made of PCB hard board for assembling circuit boards. The LED is assembled with patch LED, and also with straight-plug LED. Different components are used according to different needs. The advantage of hard lamp is that it is easy to fix and easy to process and install. The disadvantage is that it can not bend freely and is not suitable for irregular places. Hard lamp with patch LED 30 lamp per meter, 48 lamp 60 lamp and many other specifications; with direct insertion of 18, 24, 36, 48 and other different specifications, there are both front and side, side light is also known as the Great Wall lamp.