Red/Green Color LED Flash Christmas Tree
from
6.70лв
Price in reward points: 670
2 or more 5.70лв
4 or more 5.20лв
- Stock: 8
- Brand: OEM
- Reward Points: 20
- Model: 4265
- Warranty: няма
Products Sold: 1
Product Views: 43
Description:
This circuit is composed of 16 pcs LED (light emitting diode).
The 16pcs LED divided into four groups, and each group has different flashing frequencies, when four groups flash together, this item looks like a small Christmas tree.
The circuit is powered by a 9V battery.
Features:
1, the board is 1.6mm thick, looks thick and strong;
2, all the lights will bemany Gift
3, power supply interface using USB to T-shaped interface, more concise fashion;
4, power switch with metal self-locking switch, durable;
5.This circuit is simple and practical, low power consumption.It uses integrated circuits for driving: fewer parts,and the line is simple and easy to understand.
External Wiring Kit:
With pluggable plug for easy replacement of parts at any time and conducive circuit debugging. Also allows us to deepen our understanding of the principles of the circuit in the debugging process.
This line is in the form of the oscillation circuit by the cycle generated by the following principles:
After the first charge, the capacitor C1 and C4 charging is complete.
capacitors C2 and C3 will continue to charge.
When the transistor Q1 and Q4 is turned on at the same time, it discharges the capacitor C1 and C4.
Capacitors C2 and C3 is fully charged, the transistor Q1 and Q4 will be closure, while also charging the capacitor C1 and C4 again.
Transistors Q2 and Q3 is turned on while the capacitor C2 and C3 will be discharged.
By analogy, the flash of speed is the oscillation frequency, and the frequency is determined by the resistor R and capacitance C values.
- Доставка до адрес: 8 лв.
- Доставка до офис на Еконт: 6 лв.
- Доставка до офис на Спиди: 4 лв.
- Доставка до автомат на Спиди: 3 лв.
- при избор - "плащане при доставка", се добавя 2.00 лв такса наложен платеж.
- За фиксиран час се добавя 3 лв.
- Безплатна доставка при поръчка над 200 лв.
Всички поръчки се изпращат с застраховка и преглед. Моля при получаването на продукта да го прегледате пред куриера за евентуални наранявания при превоза.
Стоката се изпраща до 2 работни дни след направената поръчка. Имате право да върнете стоката в 14 дневен период, като цената на доставката при връщането е за ваша сметка.
