The big difference between the LED strips!

  There are many different types of LED lights, but the following two types are the most typical:

Type 1: LED hard light strip or PCB light strip
  These strips are fixed in length and are not easily bent, and generally have pads on the bottom for connecting the wires. As shown in the product:



  This type of lamp strip is a circuit structure composed of a series of three LEDs in a series-parallel manner, which allows the piece to be cut to the desired length. This strip can be driven with a rated constant voltage LED driver of its required energy, with a drive current equal to or higher than the current required; after the length and swing voltage is determined, it can also be driven with a constant current-constant current driver.

Type 2: Flexible LED Strip

  Some flexible strips also have solderable pads on the back like fixed strips. For individual LED lights, these pads must be a power supply and a ground.
  You may also encounter addressable or special LED strips that, although similar in shape to ordinary flexible LED strips, generally have three or more contacts.
  These added contacts are used for communication. The picture is an addressable LED strip. These strips have a built-in constant current driver chip for each LED, so it only requires a regular voltage driver.

  It should be noted that when viewing the flexible LED strip, it is essential to confirm the length of the piece by description and not just by photo confirmation. Some shorter parts may have the same manufacturer part number as the entire reel, preferably before ordering.