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Christmas Trees LED DIY Kits Professional Red Green Flash LED Circuit M

 
Product 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 little Christmas tree. the circuit is powered by a 9V battery.

Advantages:

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 & C4 charging is complete.
-capacitors C2 & C3 will continue to charge.
-when the transistor Q1 & Q4 is turned on at the same time, it discharges the capacitor C1 & C4.
-capacitors C2 & C3 is fully charged, the transistor Q1 & Q4 will be closure,
while also charging the capacitor C1 & C4 again.
-transistors Q2 & Q3 is turned on while the capacitor C2 & C3 will be discharged.
-By analogy, the flash of speed is the oscillation frequency,
and the frequency is determined by the resistor R & capacitance C values.
Suite: PCB circuit boards, battery box components. (No batteries)
If you need the instruction, contact me, I will send you a data download link~
Board Size:70mm*110mm

Package included:
1PCS xChristmas Trees LED DIY Kit Professional Red Green Flash LED Circuit
1. We Ship to Worldwide
2. We ship your orders within 1-2 business days after the payment cleared.
3. Item shipped from China via china Post Airmail, reach most of the countries within 2 to 4 weeks.
4. Delivery time depends on destination and other factors, it may takes up to 20 days. If you don't receive
the item after 30 days,please keep in touch with us, we'll investigate and solve the delivery problem.
5. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these
additional costs will be prior to bidding or buying.
 
ShenZhen

1. We accept PAYPAL only.
2. Payment must be made within 7 days of auction closing (Unpaid dispute will automatically open when item
is not paid in 7 days).
3. PLEASE NOTE: SHIPPING&HANDING DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES.
4. Please list your special requests (color, packages, value of declaration, etc.) in the EBAY NOTES SECTION
when you make payment

 

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condition when shipped to our customers. If product is defective or damage upon arrival, or wrong
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