The post explains a simple automatic PIR controlled solar garden light circuit which will switch ON the LEDs only under two conditions: when it is completely dark and when a […]
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Blinking LED Bow Tie Circuit
In this post we will discuss how to build an LED bow tie circuit which will activate and blink a few LED lights stuck on your bow tie in response […]
TIP122 Datasheet [100V, 5 amp, NPN, Darlington Transistor]
The TIP122 is an NPN Darlington pair transistor that is commonly used in power switching applications. It has a high current gain and can handle up to 5A of continuous […]
LED Light Circuit for Street Vendors, Hawkers, Shopkeepers
In this post we will discuss how to build a very simple, low cost LED lamp with charger. This unit can be used by any street seller, vendor, hawker, to […]
Laptop Power Bank Circuit
The following post explains how to build a simple laptop power bank circuit which can be used for charging a laptop battery during travelling or during outdoor trips. This device […]
7 Automatic Street Light Circuits [Using Relays and Solar Panel]
In this article we will discuss 7 useful yet simple automatic street light circuits using 220 V relays and solar panel. All the presented circuits can be used for automatically […]