Question 1

Do LED lights have polarity?

Accepted Answer

LEDs has polarity, and they only work when their positive terminal (also called anode) is connected to the positive power supply and their negative terminal (also called cathode) is connected to the negative power supply. Therefore, it is necessary to identify the anode and cathode of the LED chips when SMT is placed. Usually, this can be done by placing the tray of the LED chips correctly.

Question 2

What is the difference between SMD and SMT?

Accepted Answer

The difference between SMD and SMT is that SMD (Surface Mount Device) refers to electronic components that are mounted on a PCB. In contrast, SMT (Surface Mount Technology) involves the method used to place electronic components on printed circuit boards using mechanical machinery.

Question 3

What is SMT in PCB manufacturing?

Accepted Answer

Surface Mount Technology (SMT) is a method of mounting electronic components directly onto the surface of a PCB. SMT machine can automate multiple steps of Surface Mount Technology. Usually start with soldering solder paste, and then SMT machine puts LEDs on the PCB board. After passing through the reflow oven, the LEDs are wound around and fixed on the PCB board. After that, they are individually inspected to ensure that the process is qualified.

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LED Street Light

Solar Street Light

Led Flood Light

Solar Flood Light

LED High Bay Light

High Mast Light

LED Traffic Light

LED Tunnel Light

LED Garden Light

LED Canopy Light

Led Bollard Light

Lighting Accessories

Smart Systems

Simulation Design

Smart Financing