Power Supply and Voltage Source

No electrical device will work without electric energy, that´s no-brainer, however, you need to supply the right voltage. That is something a voltage source can help you with.

To set the record straight, a voltage source does not actually supply the the energy itself (except for a battery), it rather converts the energy. Generally speaking, the input energy entering a voltage source equals the output energy (with some losse), while altering the ratio between voltage and current.

Bestsellers

Holder for 18650 batteries
In stock (617 pcs)
LA123025A
 
from €0,12
(from €0,10 excl. VAT)
 
€0,75
(€0,62 excl. VAT)
Step-down converter with LM2596
In stock (112 pcs)
LA122003
 
€1,49
(€1,23 excl. VAT)

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421 items total

List of products

LaskaKit stavebnice 100w powerbanky pro 6x 21700 baterie 4
100W F300 power bank DIY kit for 6x 21700 batteries
The average product rating is 5,0 out of 5 stars.
In stock (3 pcs)
€27,29 excl. VAT
€33,02

100W Power Bank Kit for 6× Li-Ion 21700 is a robust DIY solution (case + electronics) for building a powerful portable power source with modern USB-C PD 3.0, QC 3.0, and support...

LA250031A
LaskaKit stavebnice 100w powerbanky a57 pro 4x 21700 baterie s usb c kabelem 1
€25,93 excl. VAT
€31,37

DIY kit for a 100W power bank for 4× Li-Ion 21700 allows you to assemble a powerful portable power source with support for modern fast charging protocols USB-C PD and QC.

LA250032
LaskaKit stavebnice 100w powerbanky pro 4x 21700 baterie 1
€22,17 excl. VAT
€26,82

Kit for a powerful 100W power bank designed for 4× 21700 Li-Ion cells allows you to assemble a compact and very powerful energy source with support for modern fast charging...

LA250007G
zdroj 2
12V/110V power supply for flexible neon tubes up to 5m
The average product rating is 5,0 out of 5 stars.
In stock (57 pcs)
€1,98 excl. VAT
€2,40

12V/110V power supply for flexible neon tubes up to 5m

LA122035A
9311 2 zdroj 12v 110v pro ohebne neonove trubice do 10m
€3,69 excl. VAT
€4,47

12V/110V power supply for flexible neon tubes up to 5m

LA122035C
9222 zdroj 12v 110v pro ohebne neonove trubice do 20 50m
12V/110V source for flexible neon tubes up to 20-50m
The average product rating is 1,0 out of 5 stars.
In stock (5 pcs)
€13,61 excl. VAT
€16,47

12V/110V power supply for flexible neon tubes up to 20-50m

LA122035B
LED indikátor stavu kapacity 1S Lipo Li-ion baterie
1S Lipo Li-ion battery capacity indicator LED
The average product rating is 5,0 out of 5 stars.
In stock (6 pcs)
€1,30 excl. VAT
€1,57

LED indicator of the capacity status of one Lipo Li-ion battery on the voltage base between four states.

LA2400051
LED indikátor stavu kapacity 2S Lipo Li-ion baterie
2S Lipo Li-ion battery capacity indicator LED
The average product rating is 5,0 out of 5 stars.
In stock (18 pcs)
€1,30 excl. VAT
€1,57

Module for capacity indication of up to two Li-ion batteries with 4 LEDs.

LA2400052
3M 9FT With 2 AA Battery Pack Decoration Auto Car EL Wire Rope Tube Neon Lights.jpg Q90
2xAA source for flexible neon tubes up to 3m
The average product rating is 5,0 out of 5 stars.
In stock (6 pcs)
€1,64 excl. VAT
€1,99

2xAA power supply for flexible neon tubes up to 3m

LA122039
LED indikátor stavu kapacity 4S Lipo Li-ion baterie
4S Lipo Li-ion battery capacity LED indicator
The average product rating is 5,0 out of 5 stars.
In stock (11 pcs)
€1,30 excl. VAT
€1,57

Module for capacity indication of up to four Li-ion batteries with 4 LEDs.

LA2400054
12v
AILI ACDC03 power supply 230V AC-DC source 12V/1A, isolated
The average product rating is 5,0 out of 5 stars.
In stock (65 pcs)
€2,32 excl. VAT
€2,81

AILI ACDC03 230V AC-DC power supply 12V/1A, isolated

LA121079B
5V
AILI ACDC03 power supply 230V AC-DC source 5V/2A, isolated
The average product rating is 5,0 out of 5 stars.
In stock (69 pcs)
€2,32 excl. VAT
€2,81

AILI ACDC03 230V AC-DC power supply 5V/2A, isolated

LA121079A
Modul stabilizátoru napětí AMS1117 5V
AMS1117 5V voltage stabilizer module
The average product rating is 5,0 out of 5 stars.
In stock (117 pcs)
€0,38 excl. VAT
€0,46

Voltage regulator module that locks the voltage to 5V.

LA122023C
LaskaKit atorch 20a vysokoproudy univerzalni adapter pro testovani baterii 5
€17,03 excl. VAT
€20,61

The ATORCH 20A High-Current Universal Battery Test Adapter is a practical accessory designed for accurate and reliable measurement of the capacity and performance of various...

LA240142B
LaskaKit automaticky buck boost tps63020 napajeci menic 1 8 5 5v 2a 1
Meshtastic
Automatic Buck-Boost TPS63020 power converter 1.8-5.5V 2A
The average product rating is 5,0 out of 5 stars.
In stock (54 pcs)
€4,03 excl. VAT
€4,88

The TPS63020 is an automatic buck-boost (step-up/step-down) voltage converter designed for applications that require stable output voltage even with variable input voltage. This...

LA122069A
Bateriový box 1x18650 SMD do DPS
Battery box 1x18650 SMD to PCB
The average product rating is 5,0 out of 5 stars.
In stock (18 pcs)
€1,20 excl. VAT
€1,45

Battery box for one 18650 battery, which can be soldered to the PCB.

LA123062
Bateriový box 1x18650 drátové vývody
€0,41 excl. VAT
€0,50

Battery box for one 18650 battery with wire outlets.

LA123057
H8ae80cd9da6c48a4b2bce63e420a5bc9g
€1,30 excl. VAT
€1,57

Battery box 1x21700 for PCB

LA123089
Bateriový box 2x CR2032 6V s vypínačem
Battery box 2x CR2032 6V with switch
The average product rating is 5,0 out of 5 stars.
In stock (44 pcs)
€0,48 excl. VAT
€0,58

Battery box for two CR2032 batteries with switch and wire outputs

LA123047
Bateriový box 2x18650 do DPS
Battery box 2x18650 for PCB
The average product rating is 2,8 out of 5 stars.
In stock (48 pcs)
€0,96 excl. VAT
€1,16

Plastic box for two Li-ion batteries type 18650 with feet for soldering to the PCB.

LA123004
Bateriový box 2x18650 SMD do DPS
€1,88 excl. VAT
€2,28

Battery box for one 18650 battery, which can be soldered to the PCB.

LA123063
Bateriový box 2x18650 drátové vývody
Battery box 2x18650 wire terminals
The average product rating is 4,0 out of 5 stars.
In stock (80 pcs)
€0,55 excl. VAT
€0,66

Battery box for two 18650 batteries with wire outlets.

LA123058
Bateriový box 2xAA uzavřený s vypínačem
Battery box 2xAA closed with switch
The average product rating is 5,0 out of 5 stars.
In stock (10 pcs)
€0,96 excl. VAT
€1,16

Plastic holder for two AA batteries with switch.

LA123033
Bateriový box 3x18650 drátové vývody
Battery box 3x18650 wire terminals
The average product rating is 4,5 out of 5 stars.
In stock (12 pcs)
€0,62 excl. VAT
€0,75

Battery box for three 18650 batteries with wire outlets.

LA123059

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421 items total
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AC-DC power supplies use AC current as input voltage, mostly from the mains, and DC voltage as output. DC power connectors allow you to safely connect these power supplies to your devices. For higher voltages, you can use 12V power adapter, 24V power adapter or a 12V mains adapter.

LDO controllers, Step-Up Converters a Step-Down Converters operate only with DC voltage.

Batteries and accumulators store electrical energy in chemical reactions based on oxidation-reduction potential. In case you plan to use a battery such as Li-ION 18650 or 3.7V Li-ION battery, it's a good idea to also buy a dedicated charger and protection. Battery protection ensures safe operation and long life. For proper charging, use the guide on How to charge Li-ION batteries a how to properly charge a Li-POL battery.

If you are using CR2032 lithium battery, it is also important to have the right connector, such as 9V battery connector.

Solar battery charger is a great solution for eco-friendly power supply. USB connector a USB C adapter again you will need for connecting and powering modern devices. Mini USB charger a 2A charger are also useful for fast and efficient charging.

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