What are the best electric cables and signal cables for LED lighting projects?

1. Selection of power cord type and problem  that are prone to occur

for LED lighting projects

(Note: Regardless of the use of an AC transformer or DC power supply. It is necessary to ask a qualified electrician for wiring.  According to the power and distribution of the on-site lamps and lanterns under the condition of meeting the power supply.)
· The power cord generally adopts the type with a full copper core, thick wire diameter, and small voltage drop.
Generally, the thickness of the wire diameter (that is, the size of the cross-section) is selected according to the size of the current. If the current is too large and the power wire is thin. It will cause overload, heat generation, burnout, and a short circuit of the lamp.
· If you choose a poor-quality power cord, or if the power supply wiring is unreasonable, the voltage drop of the lamp tube will increase and the brightness will not be enough, or even cannot be driven. The above situation should be handled by a qualified electrician.
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· For power cords that are too thin or of poor quality can be judged from the following four aspects:
(1) Insulation: bare wire, rubber wire, plastic wire
· (2) Material: aluminum, copper;
· (3) Specifications: multi-strand, single-strand;
(4) Section: from 0, there are 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, etc.
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2. Connection method and skills of AC transformer and DC power supply
· (1) When using an AC transformer for LED pixel light, you don’t need to pay attention to the positive and negative connections, but you must pay attention to the positive and negative connections when using a DC power supply.
· (2) When using a DC power supply, it must be noted that the positive and negative directions cannot be reversed.
(3) Regardless of using an AC transformer or a DC power supply, it is necessary to ask a qualified electrician to do the wiring on the premise that the power supply power is sufficient according to the power and distribution of the on-site lamps (Due to reasons such as a too thin power cord, poor quality or unreasonable power supply wiring, etc., the voltage drop of the lamp tube will increase and the brightness will not be enough, and it will not be able to drive. You need to ask a qualified electrician to deal with it.)
Three. Selection of controller model, wiring, and debugging method
· (1) Select the applicable model according to the number of meters and pixels of the controller.
· (2) Determine whether to add a signal conversion board according to the distance between the controller and the lamp.
· (3) According to the comprehensive situation of lamps, on-site wiring, and power supply used in the project, consult the professional opinions of Civic business personnel to provide you with the most suitable control scheme.

Four. The model selection of the signal line, the problems, and solutions for LED lighting projects that are likely to occur
· (1) Choose a full copper core wire to ensure that the smaller the resistance, the smaller the loss; for the plug, it is recommended to choose a cold-resistant and waterproof type.
(2) Judging by the transmission distance, ordinary signal lines can be selected for general distances. It is recommended to use super-category five unshielded network cables for long-distance output, and it is not recommended to use telephone lines for transmission. the
(3) If the signal cannot be transmitted, an amplifier board or matching capacitor can be added; if there is a shielding layer, the shielding layer needs to be grounded to achieve isolation.

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