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DIY Kit Automatic Energy-Saving Control System Analog Circuit Street Lamps Electronic Soldering Kits DIY Kit Automatic Energy-Saving Control System Analog Circuit Street Lamps Electronic Soldering Kits 1.Introduction: TJ-56-44 is a Automatic Energy-Saving Control System Electronic Soldering DIY Kit. It is a basic street lamp control system, which uses photosensitive sensors to control the light on and off.   Sensitivi... $3.49
$4.99 SKU: GY20877-1
$3.49
$4.99
 31

DIY Kit Automatic Flashing LED Lamp Self-excited Multivibrator Circuit Electronic Soldering Kits for Beginners DIY Kit Automatic Flashing LED Lamp Self-excited Multivibrator Circuit Electronic Soldering Kits for Beginners 1.Introduction: TJ-56-523 is a Self-excited Automatic Flashing LED Lamp Electronic Soldering DIY Kit. It is a typical self-excited multivibrator circuit, realizing the automatic alternating flashing of two LED. It is a very inter... $2.79
$3.99 SKU: GY20876-1
$2.79
$3.99
 30

DIY Kit DC 9V-12V Red Blue Automatic Flashing LED Lamp NE555 CD4017 Analog Circuit Electronic Soldering Practice Kits DIY Kit DC 9V-12V Red Blue Automatic Flashing LED Lamp NE555 CD4017 Analog Circuit Electronic Soldering Practice Kits 1.Introduction:   TJ-56-91 is a NE555+CD4017 Red Blue Automatic Flashing LED Lamp Electronic Soldering DIY Kit. The blue and red LED flash alternately according to the circuit pulses. Potentiometer RP1 can adjust the flicker fre... $2.79
$3.99 SKU: GY20874-1
$2.79
$3.99
 30

DIY Kit Lucky Wheel Sweepstakes Analog Circuit Electronic Soldering Practice Kits for Beginners DIY Kit Lucky Wheel Sweepstakes Analog Circuit Electronic Soldering Practice Kits for Beginners 1.Introduction: TJ-56-10 is a Lucky Wheel Sweepstakes Electronic Soldering DIY Kit. It can simulate the working state of the lucky wheel very realistically. As the lucky wheel starts, the LED will flash automatically in turns an... $2.09
$2.99 SKU: GY20861-1
$2.09
$2.99
 31

DIY Kit Heart-shaped Flashing Lamp 18pcs RGB LED Analog Circuit Electronic Soldering Practice Kits DIY Kit Heart-shaped Flashing Lamp 18pcs RGB LED Analog Circuit Electronic Soldering Practice Kits 1.Introduction: TJ-56-30 is a RGB Heart-shaped Flashing Lamp Electronic Soldering DIY Kit.  It consists of 18 RGB LED divided into 3 groups.The three groups of LED are lit in turn after being installed alternately, thus form... $2.09
$2.99 SKU: GY20863-1
$2.09
$2.99
 31

DIY Kit SMD 15Bit RGB LED Flashing Analog Circuit Electronic Soldering SMD Component Soldering Practice Board DIY Kit SMD 15Bit RGB LED Flashing Analog Circuit Electronic Soldering SMD Component Soldering Practice Board 1.Introduction: TJ-56-266 is an SMD 15Bit RGB LED Flashing Circuit Electronic Soldering DIY Kit. It is a circuit completely composed of SMD components.It can not only contact and improve the welding skills of SMD components, but also... $3.21
$4.59 SKU: GY20865-1
$3.21
$4.59
 30

SMD Component Soldering Practice Board DIY Kit Analog Circuit Electronic Soldering Practice SMD Component Soldering Practice Board DIY Kit Analog Circuit Electronic Soldering Practice 1.Introduction: TJ-56-516 is an SMD Component Electronic Soldering DIY Kit. It is a circuit completely composed of SMD components.It can not only contact and improve the welding skills of SMD components, but also obtain the flickerin... $3.49
$4.99 SKU: GY20866-1
$3.49
$4.99
 31

DIY Kit NE555 Doorbell Analog Circuit Electronic Soldering Practice Kits for Beginners DIY Kit NE555 Doorbell Analog Circuit Electronic Soldering Practice Kits for Beginners 1.Introduction: TJ-56-28 is a NE555 Doorbell Analog Circuit Electronic Soldering DIY Kit. It is an electronic doorbell control system. When the button is pressed, the horn makes a sound ‘dingdong~~’ It is a ... $2.65
$3.79 SKU: GY20860-1
$2.65
$3.79
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DIY Kit AC/DC-DC LM317 Adjustable Step Down Power Supply Voltage Converter Electronic Soldering Kits DIY Kit AC/DC-DC LM317 Adjustable Step Down Power Supply Voltage Converter Electronic Soldering Kits 1.Introduction: TJ-56-24 is a AC/DC-DC LM317 Adjustable Buck Power Supply Electronic Soldering DIY Kit. It can input AC<=17V or DC<=25V and adjustable output DC 1.25V-12V within 1A. It is a very interesting DIY electr... $2.09
$2.99 SKU: GY20867-1
$2.09
$2.99
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DIY Kit NE555 Infrared Reversing Radar Sensor 30cm Distance Sensing Analog Circuit Electronic Soldering Kits DIY Kit NE555 Infrared Reversing Radar Sensor 30cm Distance Sensing Analog Circuit Electronic Soldering Kits 1.Introduction: TJ-56-109 is a NE555 Infrared Reversing Radar Sensor Electronic Soldering DIY Kit.  It simulates reverse radar sensing through infrared transceiver sensors to detect distance. Adjust RP1 distance and RP2 sens... $2.79
$3.99 SKU: GY20868-1
$2.79
$3.99
 30

DIY Kit LM358 Breathing Lamp Blue LED Electronic Soldering Practice Kits DIY Kit LM358 Breathing Lamp Blue LED Electronic Soldering Practice Kits 1.Introduction: TJ-56-31 is an LM358 Breathing Lamp Electronic Soldering DIY Kit. It is an LED light automatic change circuit. The light turns dark automatically from bright LM358 Breaking Lamp, and then turns bright automa... $1.81
$2.59 SKU: GY20873-1
$1.81
$2.59
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DIY Kit LM358 Infrared Sensor Alarm Analog Circuit Learning Electronic Soldering Practice Kits DIY Kit LM358 Infrared Sensor Alarm Analog Circuit Learning Electronic Soldering Practice Kits 1.Introduction: TJ-56-371 is an LM358 Infrared Sensor Alarm Electronic Soldering DIY Kit. It is used to simulate infrared detection. When an object blocks in front of the infrared sensor, the buzzer switch will alarm, and the red L... $2.09
$2.99 SKU: GY20871-1
$2.09
$2.99
 31

DIY Kit Voice Control Red LED Rhythm Lamp 5pcs LED Lamp Analog Circuit Electronic Soldering Practice Kits for Beginners DIY Kit Voice Control Red LED Rhythm Lamp 5pcs LED Lamp Analog Circuit Electronic Soldering Practice Kits for Beginners 1.Introduction: TJ-56-15 is a RED Voice Control LED Rhythm Lamp Electronic Soldering DIY Kit. It is a simple and basic electronic circuit of sound LED lamp. It receives sound through electret microphone. The amount and brightness... $1.95
$2.79 SKU: GY20864-1
$1.95
$2.79
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DIY Kit Heart-shaped LED Flashing Lamp Red LED Flashing Light Electronic Soldering Practice Kits for Beginners DIY Kit Heart-shaped LED Flashing Lamp Red LED Flashing Light Electronic Soldering Practice Kits for Beginners 1.Introduction: TJ-56-30 is a Red Heart-shaped Flashing Lamp Electronic Soldering DIY Kit. It consists of 18 Red LED divided into 3 groups.The three groups of LED are lit in turn after being installed alternately, thus forming a heart ... $2.09
$2.99 SKU: GY20862-1
$2.09
$2.99
 31

DIY Radio Kits FM 87-108MHz, Electronic Soldering Practice Kit, RDA5807 Radio Kits with 2 Power Supply Modes Digital Radio Kit with Headphone Jack DIY Radio Kits FM 87-108MHz, Electronic Soldering Practice Kit, RDA5807 Radio Kits with 2 Power Supply Modes Digital Radio Kit with Headphone Jack Description: WORK ON YOUR SOLDERING SKILLS: This is a FM radio electronics soldering kit, perfect for intermidate/advanced levels, electronics hobbyists and retirees to learn soldering skills and abilities. 2 POWER SUPPLY MODES: ... $13.29
$18.99 SKU: GY20811-1
$13.29
$18.99
 30

DIY Kit 4Bit Digital Electronic Clock, DC 5V Red LED Clock, Date Time Temperature Alarm Clock SMD Soldering Practice Kit DIY Kit 4Bit Digital Electronic Clock, DC 5V Red LED Clock, Date Time Temperature Alarm Clock SMD Soldering Practice Kit 1.Introduction: TJ-56-619 is a 4Bit Digital Electronic Clock DIY Kit. It will display current date, time, temperature in the real time, Dual Alarm clock.User can set alarm as your needs.It is easy to operate, beautiful design, very sui... $7.97
$11.39 SKU: GY20795-1
$7.97
$11.39
 31

DIY Kit NE555 Rechargeable LED Dimming Table Lamp, USB Powered LED Table Lamp, Electronic Soldering Practice Kits for School Home Education DIY Kit NE555 Rechargeable LED Dimming Table Lamp, USB Powered LED Table Lamp, Electronic Soldering Practice Kits for School Home Education 1.Introduction: CAI-221 is a LED Dimming Table Lamp DIY Kit. Its design inspiration comes from the desk lamp commonly used in home/office. It uses 24 pure white LED and adjusts the brightness of the lamp through a potentiometer. ... $9.45
$13.50 SKU: GY20781-1
$9.45
$13.50
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DIY Kit LED Dimming Table Lamp DC 3.7V-5V Electronic Soldering Practice Kit with Rechargeable 18650 Lithium Battery DIY Kit LED Dimming Table Lamp DC 3.7V-5V Electronic Soldering Practice Kit with Rechargeable 18650 Lithium Battery 1.Introduction: CAI-221 is a LED Dimming Table Lamp DIY Kit. Its design inspiration comes from the desk lamp commonly used in home/office. It uses 24 pure white LED and adjusts the brightness of the lamp through a potentiometer.It is... $17.49
$24.99 SKU: GY20753-1
$17.49
$24.99
 30

DIY Rotating LED Light DIY Electronics Kit, LED Flashing Light Circuit Board Soldering Practice Kits DIY Rotating LED Light DIY Electronics Kit, LED Flashing Light Circuit Board Soldering Practice Kits 1.Introduction:   TJ-56-515 is an Desktop RGB LED Rotary Gyro Electronic Soldering DIY Kit. It is a multivibrator circuit composed of a transistor, which drives two groups of LED to flash alternately.   When rotating, th... $3.49
$4.99 SKU: GY20780-2
$3.49
$4.99
 31

DC 5V Green LED Electronic Clock DIY Kit Date Time Temperature Alarm Clock Electronic Soldering Practice Kit DC 5V Green LED Electronic Clock DIY Kit Date Time Temperature Alarm Clock Electronic Soldering Practice Kit HU-012BT Voice Digital Electronic Clock DIY Kit 1.Introduction: HU-012BT is a Voice Digital Electronic Clock DIY Kit. It will display current date and time and temperature in the real time.User can set alarm as your needs.Easy... $10.49
$14.99 SKU: GY20739-1
$10.49
$14.99
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