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100pcs 20Ma F5 5MM Transparent Ultra Bright White LED Diode
US$4.33 US$5.99

Q: What is forward voltage? Specs say 1.8-2.2volts, but photo shows coin cell, so either 1.5 v coin cell or 3 volt coin cell. All of the other white LEDs that I have are rated 2.8-3.2 volts. What is the forward voltage for these white LEDs?

Asked by David on 2020-08-06 10:37:48

Lord_jen it is 1.8-2.2volts, 1.5V is ok but lower

2020-08-19 05:40:09 Helpful (0)
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Answers (1)
David 13/08/2020
Great for two AA battery circuit for 9-15 year old students.
100PCS 2Pin 5MM 20mA Transparent Round Top Emitting Green LED Diode DIY Light Set DC3V
US$5.33 US$9.99
0
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David 13/08/2020
Great for two AA battery circuit for 9-15 year old students.
100pcs 5mm F5 Pure White Ultra Bright Transparent Round 20mA 3V LED Diode DIY Emitting Lamp Through Hole
US$5.33 US$9.99
0
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David 13/08/2020
AWG 22 is good for 9 volt circuit, where flexible wire is important.
DANIU 10 Meter Black Silicone Wire Cable 10/12/14/16/18/20/22AWG Flexible Cable
US$5.68 US$10.99
0
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David 13/08/2020
Excellent for teaching 9-15 year olds about transistors, using hands on lessons.
100pcs 40V 0.8A NPN Transistors 2N2222 TO-92 For High-speed Switching
US$5.71 US$11.99
0
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David 13/08/2020
Very good for two AA battery circuits.
10pcs 3V Active Buzzer Electromagnetic SOT Plastic-sealed Tube Long Sound 12mmx9.5mm
US$4.90 US$8.99
0
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David 13/08/2020
AWG 22 is good for 9 volt circuit, where flexible wire is important.
DANIU 5 Meter Red Silicone Wire Cable 10/12/14/16/18/20/22AWG Flexible Cable
US$5.00 US$8.99
0
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David 13/08/2020
Good value. I took one apart to show my 9-15 year old students the inside of a solderless breadboard.
21pcs 7colors ZY-25 Mini Solderless PCB Circuit Test Breadboard
US$6.12 US$13.99
0
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David 13/08/2020
The description said "Transparent" lens. The item delivered has a lens color that is red (see photo). I tested several of the LEDs with red color lens, and they work very good. The item delivered to me did not match the description.
100pcs 5mm F5 DIY Red Transparent Round 20mA 2V LED Diode Emitting Lamp Through Hole
US$5.33 US$9.99
0
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Voice Control Melody DIY LED Flash Kit Production Suite Small Electronic Learning Electronic Kits
US$1.38

Q: Photo shows two resistors and no mic. Circuit diagram shows three resistors and one mic. Does the DIY kit include all three resistors and the mic? Does Banggood sell mic as a separate part?

Asked by David on 2018-10-28 07:49:03

Extrud Yes, it have all three resistors and the mic

2018-11-05 09:46:36 Helpful (0)
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Answers (1)
David 04/01/2018
The description says "Self-locking On / Off Switch". None of the switches lock. They are all momentary contact switches. Because the switches do not perform like the description, the Value is one star. The switches look like the photograph, so the appearance is 5 stars. They are all good quality, correctly assembled and smooth motion, so Quality is 5 stars. I need self locking switches. These momentary switches do not meet my needs.
100pcs 8 x 8mm 6 Pin Touch Self-locking On / Off Switch Push Button Switch Latching Switch
US$7.16 US$13.99
0
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Comments (1)

David Are the pins on the correct distances for a solderless breadboard?

djfg 13/11/2017
Product OK, but no datasheet with it. Double inverter switch and symmetric. See my little schematic. Product not enough packed or badly manufactured! +20% of the package have their legs bend, as you can see on the picture. Hope there are no internal stresses resulting on the switch.
100pcs 8 x 8mm 6 Pin Touch Self-locking On / Off Switch Push Button Switch Latching Switch
US$7.16 US$13.99
2
Comments (2)

David Are the pins on the correct spacing for a solderless breadboard?

burnsheep 03/12/2017
It is a lock type switch
100pcs 8 x 8mm 6 Pin Touch Self-locking On / Off Switch Push Button Switch Latching Switch
US$7.16 US$13.99
0
Comments (1)

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