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Thursday, November 19, 2015

How To Make Emergency Lights Powered By Laptop

Hi Guys, on this auspicious occasion, admin re-share a post with the label " How To " with the title:

HOW TO MAKE EMERGENCY LIGHTS POWERED BY LAPTOP

Emergency lights or emergency lamp was often needed when electric power was failure or when you want to find something in the dark. This lamp types and brands already circulating in the market from small to large and from cheap to expensive. The marketing system was also assortment from beeing displayed in the window electronics store until being peddled door to door and from paying by installments until to cash.


That indicates that the emergency lamp is very important to be owned in each house at least one lights for used in emergencies. But what if the one lamp that we own turned out to be broken and has not had time yet to buy a new one? Or existing new but broken lamp still unemployed?

Okay, while searching for answers to the above questions, here the admin will share how to make the emergency light that really emergency but very useful especially when a sudden electric power failure and no generator or alternative of electric power source. While the existing emergency lights were low battery and intractable to be charged. While one new lamp would be brought our children to learning group. Fortunately laptop battery power indication with 77% remaining. Wow!

Facing such that situation, while the work being piled up, we may not dissolve in aggravation and despair. But it would be nice if we apply the method to make emergency light powered by laptop as will be described later.

Before making a circuit lamp, materials to be prepared include:
. Broken emergency lights (so long as LED lights still good)
. Screwdriver (size appropriate casing bolts of lamp)
. USB socket ex-mobile phone charger or unused data cable

And among term used as shown in this picture:


Then,  do as following:
1. Remove the screws on the lamp casing
2. Open the casing carefully
3. Find both minus and plus cables are connected to the feet of LED lights and ignore the other cables
4. Take USB socket, ex-mobile phone charger following the wire then cut the end part (cut the socket to mobile phone)
5. Connect the black wire on the USB to the minus cable or foot of LED lamp, while the red wire to the plus cableor foot  of LED
6. Ignore the green and yellow wires of the USB cable
7. Arrange the wire connection in order to avoid short circuit
8. Close the casing emergency lamp and replace the screw-bolt
9. Connect the socket USB into the USB port of a laptop
10. Done

Okay, enjoy the brightness of emergency lamp using laptop power. And survived to continue the work.

Additional:
. To freshen up a connection of circuit, should we use solder (when electric power is on)
. To save battery power of laptop, should we use LED lights at sufficiently (do not connect all of them or try to use the appropriate resistor)
. LED lights that may remain, can be used as a second emergency lights etc., are arranged in parallel
. For about casing of second emergency light etc., can be modified depend on desire
. To switch on emergency lamp can also use the power bank or mobile battery or digital camera battery or 2 batteries of clock / remote arranged in series, or other batteries with has power between 3 to 4 volts (appropriate to the amount and voltage of LED lights are used ).

That sharing of admin to buddy-buddy KM everything, may be helpful. Okay, thank you and see you at another time. Insha Allah.