05:05

Auto volt convert #220v ac to 3v,6v,9v12v,24v,48v,96v,120v dc | AC To DC Led multi-output converter

06:51

Voltage regulator with current Adjustable power supply | current and voltage adjustable

04:15

Street light automatic on off with 220 AC no need of a relay or battery | Automatic on-off LED bulb

08:03

Turn any laptop fixed voltage Adapter to variable voltage adapter (3V - 24V)

09:43

Variable power supply Adjustable voltage and current 0-30V 10A

08:04

Simple Inventions from USB | USB Tester

05:55

How to convert laptop webcam to USB webcam at home

06:30

Most useful creative idea | all components tester using one resistor

04:14

220 volt to 3v-6v-9v-12v-24v-48v-98v-120v. DC LED driver Circuit without Transformer

08:45

How to make Clap Switch Circuit

06:44

How to make simple wireless remote control switch with relay

04:21

How to make short circuit and overload protection using relay

03:34

how to make usb tester at home

03:02

How to make automatic on off led bulb at home | street light automatic on off without relay

04:20

2 pin plug connection | how to wire a 2 pin plug | proper connection

03:36

Inverter 1.5V to 220V | dc to ac Inverter

02:49

Three way switch connections / 1 Light 3 Switch Connection Wiring

07:36

Two way switch connection 5 method / staircase two way switch wiring

03:03

Diy polarity tester positive negative finder

03:28

Auto cut off 3.7 volt battery charger circuit

07:37

12v dc to 220v ac inverter 500w at home / how to make a powerful inverter using irfz44n

04:37

How to make a simple fm transmitter circuit with 6 components

03:33

Battery charge level indicator circuit using resister

04:55

Power bank fast charging Module using lm2576

03:11

220v to 12v Power Supply without Transformer | Ac to Dc converter

03:19

Adjustable power supply | Simple Powerful Voltage Regulator

05:20

Water tank Level Indicator using ic uln2003

03:31

Street light automatic on off light switch for any bulb

02:31

LDR Security alarm with only five components

03:21

12 volt led light controller circuit | Automatic street light sensor switch

03:06

Ac line tester without touching any wire | Non contact ac voltage detector

02:58

3 7v Lithium Battery Full and Low Level Indicator

03:44

12v dc to ac inverter

02:51

LED Flasher Circuit | Blinking LED with Opto coupler

02:52

Home made wireless ac line tester | Check AC Line Without Touching The Wire

04:10

Battery volt level indicator | 12 volt battery level indicator

02:00

lamp starter experiment | Flashing or Flickering Light

04:12

water tank level indicator project | water tank overflow alarm

03:21

How to make a short circuit protection | Battery protection circuit

03:23

Flashing led direct 220V ac

02:59

Emergency mobile phone charger using 6Volt to 24volt Battery

03:18

led bulb automatic on off switch

03:43

Battery volt level indicator using zenor diode | 4 volt to 12 volt battery level indicator

03:04

How to make temperature sensor circuit using thermistor

04:50

Adjustable power supply circuit | voltage regulator circuit

02:10

How to make a touch switch using only mosfet transistor

05:13

4v dc to 220v AC mini inverter

03:36

Automatic street light on off directly with 220ac no relay or battery

03:26

FM Transmitter circuit only with 5 components

02:50

Non contact Voltage Tester

02:53

220V AC Bulb Flashing for Diwali and Christmas

03:14

Street Light Automatic on off directly with 220v AC

03:01

DC light control with LDR scener | 4volt led control with LDR

02:24

Dc voltage doubler Circuit

04:39

1.5v to 220v | dc to ac Inverter

03:36

Led flasher with 220v AC

03:36

Breathing LED use with Opto Coupler

02:00

RGB led run 220v ac

01:49

1.5v or 3v Led with 220v AC