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Understanding LED Aluminum PCB Voltage Calculation

2025-11-01

When customers choose the SKD supply mode, one common challenge is determining the correct LED driver output voltage. This depends on understanding the series-parallel configuration of the LED aluminum PCB.

For example, the Vbrite 5050 (28 pcs) LED board uses a 2S14P layout — meaning 2 LEDs in series and 14 in parallel. Based on the rule that series voltages add up while parallel voltage remains the same, the total input voltage equals the number of LEDs in series multiplied by the voltage of each LED.

LED Voltage	PCB Input Voltage
6V	12V
12V	24V
24V	48V
30V	60V

Before selecting a driver, confirm the LED chip voltage and calculate the final voltage according to the series-parallel layout.

Here are some common LED configurations:

2835 LED: 2 chips 2S1P = 6V, 2 chips 1S2P = 3V, 3 chips 3S1P = 9V
3030 LED: 4 chips 2S2P = 6V
5050 LED: 8 chips 8S1P = 24V, 10 chips 10S1P = 30V
7070 LED: 18 chips 18S1P = 54V, 18 chips 9S2P = 27V, 24 chips 24S1P = 72V

(Note: A single LED chip voltage typically ranges from 2.6V–2.9V, depending on current.)

At Vbrite, we provide custom aluminum PCB design, optical solutions, and driver matching services with years of SKD experience.
We’re proud to support many international clients with professional lighting system integration and custom LED board design solutions.

Réverbère solaire tout en un

Module de projecteur LED

Module de PCB à LED

Module de réverbère de LED

LUMIÈRE DE STADE DE LED

Lumière LED

lumière élevée de mât

Lampe de rue à LED

Lumière de la baie haute OVNI

Lumière menée de jardin

Des kits de réaménagement LED

Kit SKD LED

Conducteur de puissance de LED

lentille optique menée

Réverbère solaire tout en un

Module de projecteur LED

Module de PCB à LED

Module de réverbère de LED

LUMIÈRE DE STADE DE LED

Lumière LED

lumière élevée de mât

Lampe de rue à LED

Lumière de la baie haute OVNI

Lumière menée de jardin

Des kits de réaménagement LED

Kit SKD LED

Conducteur de puissance de LED

lentille optique menée

Détails du blog

Understanding LED Aluminum PCB Voltage Calculation

Understanding LED Aluminum PCB Voltage Calculation