Battery holder 2x 18650 3,7V Parallel Lithium Battery

PLA Set of 20 colors Filament 1.75mm x 5m features:
- White
- Gray
- Yellow
- Orange
- Red
- Blue
- Green
- Black
- Pink
- Purple
- Luminescent green
- Gold
- Silver
- Transparent purple
- Transparent blue
- Transparent orange
- 4 random colors

WIFI transceiver based on the ESP8266 controller.
It has a microcontroller and 2 GPIO pins to be able to operate autonomously without the need for an external microcontroller. Characteristic: - Voltage of power: 3.3V
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- Integrated TCP / IP stack
- PLL, regulators and integrated power management units
- Output power: 0.15 (W); + 19.5dBm in 802.11b mode
- Consumption in low power mode:

Mobile Charger 5V 3A 3100mA  with connector USB-C. This power supply has an additional USB-A connector.

High grade in the absorption of tin for professionals.
Copper mesh roll for desoldering electronic components.
Desoldering Wire 2mm features:
- Material: Copper
- Length: 1.5m
- Width: 2mm

Screen OLED 0.96" 128x64 White SPI I2C 7 Pin features:
- Oled 0.96 "screen with 128 * 64 pixels
- Drive IC model SDD1306
- Power: 3V-5.5V - Viewing angle: 160 degrees
- SPI interface (I2C can be changed)
- Low consumption: 0.08W
- Operating temperature: -20 to 70 ºC
- PCB board dimension: 27 x 27mm
- Supports many control chip: 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
- OLED technology offers high contrast, significantly improves black on screen energy efficiency - very low power consumption Applications: - Due to the size, quality and consumption of smart watch products, portable meters , medical devices, portable players, etc.

2 Channel Relay Module 5V 10A for Arduino features:
- 5V relay module with 2 optocoupled channels
- This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
- Channels: 2 (independent protected with Optocouplers)
- Supply voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- LED indicator: For each channel
- Dimensions: 40x 50mm

Pre-cut insulating base for electrode, base without holes for 4x 18650 batteries. Self-adhesive pad isolates and protects battery contacts from short circuits. Stick to the battery after sealing it in a package.

Rocker Switch 3A 250V On/Off SPST features:
- AC 250V 3A 2 Pin ON/OFF I/O SPST Snap in mini oscillating switch
- Rocker switch; Type: On/Off (SPST)
- Control on and off SPST and 2 terminals
- Voltage and Current: AC250V, 3A
- Overall size: ~ 1.5 x 1 x 1.7 cm/0.6"x 0.4" x 0.7 "(L*W*H)
- Mounting hole size: 1.35 x 0.8 cm/0.53"x 0.315" (L*W)
- Black