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Description: 1. Description Working voltage: 3.3V-5 2. Using two 595 chips to drive the digital tube control, needs 3-way single-chip IO port , according to the digital tube display dynamic scanning 3. PCB board size: 71mm*22mm 4. Driver IC: TM1637 5. The digital model: 0.36 4 Bits common cathode (positive) Package List: 1 * 4 Bits Digital Tube LED Display Module | ||||||




1. What is the delivery time?
Normally, 1-5 workdays after payment;
Special requirement orders, delivery time is negotiable.
2.If the products can’t work after receiving it,what should I do?
We will replace new items for you at once, and respect your final decision for wrong goods.
3.If the products don’t meet my demand after I received it,can I return it?
Yes,no problem.
You can return back to us, we will refund your full payment.
4.what is the warranty?
1-2 years warranty according to different products.
1-3 months to replace new items for free.
All products are tested strictly for 2-3 times before leaving factory.
New products from manufacturers at wholesale prices