DIY 3D Christmas Kit Flashing Light LED Circuit 3/7 Colors Xmas Tree Gift For Sale
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DIY 3D Christmas Kit Flashing Light LED Circuit 3/7 Colors Xmas Tree Gift:
$5.79
- 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 7 ColorsPlease note: It\'s diy kits. Need to solder by yourself.
Working voltage: DC4.5-5V
Finished Dimensions: 60mm length *60mm width *136mm heightThe flash Christmas tree kit consists of a combination of three circuit
boards, the user through their own welding assembly, so that the 36 LED
alternating flashing, in the space of a Christmas tree in the outline of the
three-dimensional (night environment to see better).Package included:
1Pc- Payment Method
- Shipping Policy
- Returns & Refund Method
Managed Payment. But we only Accept your Address, please Make sure it\'s 100% right.
Shipping Policy
Payment must be received in 5 business days of sale closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.1. We only ship to the confirmed address provided by . please make sure your address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
Returns & Refund Policy
2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can\'t take a refund.- All package need towait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can\'t take a refund.
- If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
- If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
We maintain high standards of excellenceand strive for 100% customer satisfaction!response is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutralor negativeresponse, so that we can satisfactorily address your concerns.
On Dec-02-21 at 19:01:19 PST, seller added the following information:Payment MethodShipping PolicyReturns & Refund PolicyresponseAbout usPayment Method Managed Payment. But we only Accept your Address, please Make sure it\'s 100% right.
Payment must be received in 5 business days of sale closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order.
Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy1. We only ship to the confirmed address provided by . please make sure your address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can\'t take a refund. Returns & Refund Policy- All package need towait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can\'t take a refund.
- If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
- If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
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