Kit 2x Blue Aluminium and Gold flat metal heatsinks

Transistor kit, 200pcs of PNP+NPN TO-92 Bipolar Transistor in a box.

BC337, BC327, 2N2222, 2N907, 2N3904, 2N3906, S8050, S8550, A1015, C1815.

Well packed and assorted in a plastic storage case. It's a great choice for your electronic projects.

Protective cover used for micro: bit. The cover has two different sides, dot matrix display area, finger usage area on the front. Micro USB interface, power interface and reset button on the back side. It can be installed on a micro: bit board to make your work more charming and fun. Weight: 10g
Size: 5,65 cm * 3,7 cm
Material: gel silica (environmental protection material)

Heat Sink Aluminium Nema 17 features:
- MK8 Extruder Radiator Heatsink Printer
- Ideal for NEMA17 motors and MK7 and MK8 extruders - Dimensions 40 x 40x 11mm

10x Photoresistor 5mm GL5516 LDR 5-10k for Arduino.
Photoresistor is a resistor whose resistance decreases when increasing the intensity of the light that falls on it. 10x Photoresistor GL5516 LDR features:
- Model: GL5516
- Spectral peak: 540nm
- Maximum DC voltage: 150V
- Maximum power: 90mW.
- Resistance with light (10lux): 5-10KΩ
- Resistance with darkness (0lux): 0.5MΩ
- Response time: 20ms
- Operating temperature: -30ºC - 70ºC

- It consists of a 20-character, 4-row display
- The display is compatible with the controller HD44780 and integrates the module so you can use it through the I2C protocol without any problem
- Only two pins are needed for communication, SDA and SCL
- Ideal for projects with ARDUINO and Raspberry Pi platforms - You can use it with PIC, AVR, STM32
PCF8574 - & gt; the default address 0x20
PCF8574A - & gt; the default address 0x3F
- It can be changed to any between 0x20 and 0x27 depending on whether or not you have soldered pins A0 A1 A2
20x4 2004 LCD display PCF8574T I2C Backlit Blue features:

- LCD screen, 20 characters and 4 lines
- 5V power supply
- HD44780 compatible controller

Wide range of voltages, improved version.
Drop module.
They will use a multimeter to Check the output voltage and adjust the potentiometer.
3A DC Converter 4-53V Adjustable LM2596H Step Down Source features:

- Based on the LM2596HVS-ADJ regulator
- Rectification: Asynchronous
- Output Voltage: 3v ~ 40v DC (adjustable)
- Input Voltage: 4.5v - 53v DC
- Max Output Current: 3A (with heat sink)
- Ripple in output voltage: 30mV
- Frequency: 150KHz
- Max Conversion Efficiency: 92%
- Load Regulation: ± 0.5% - Voltage Regulation: ± 2,5%
- Operating temperature: -40ºC to + 85ºC
- Measurements: 43x 21x 14 mm

40x Female-Female Cable 20cm features:
-Length: 20cm
-Quantity: 40 wires
-Dupont female connectors on both ends
-Compatible with 2.54mm male connectors
-High quality and good working condition
-Easy to install and use