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The new portable emergency lantern of my father

The new portable emergency lantern of my father

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The lantern have a 4V 2500mAh sealed lead-acid battery, and 20 0.5W SMD LEDs. It have a USB connector. so I had to use an adapter to connect it to a regular socket.
It also have a built in dimmer, so you can dim the lantern, when you use it as a camping lantern.
The charger is a switching power supply, so the lamp takes a while to light up, when disconnected from the socket.

IMG_0446~2.JPG IMG_0435~0.JPG IMG_0366~0.JPG IMG_0345~1.JPG

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Filename:IMG_0366~0.JPG
Album name:dor123 / LED lighting (Except road lanterns), LEDs in general, lasers, flashlights and other lighting gadgets
Keywords:Lanterns
File Size:708 KB
Date added:Mar 14, 2020
Dimensions:1536 x 2048 pixels
Displayed:40 times
Date Time:2020:03:14 08:51:53
DateTime Original:2020:03:14 08:51:53
Exposure Bias:0 EV
Exposure Time:1/20 sec
FNumber:f 3.3
Flash:No Flash
Focal length:4.3 mm
ISO:800
Make:Canon
Model:Canon PowerShot SX730 HS
White Balance:1
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-174392
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rjluna2
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Robert


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Mar 16, 2020 at 05:57 AM Author: rjluna2
Nice, dor123

Pretty, please no more Chinese failure.

dor123
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May 29, 2020 at 03:26 AM Author: dor123
Update: This lantern stopped working from unknown reasons. The battery still charging, but the light don't turns on when disconnecting this lantern from the power.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

rjluna2
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Robert


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May 29, 2020 at 06:19 AM Author: rjluna2
Whelp, might be the ballast or LED that lead the failure

Pretty, please no more Chinese failure.

dor123
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May 29, 2020 at 06:30 AM Author: dor123
The LEDs are OK and the LEDs operates from the battery so they only needs a resistor.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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