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Building a battery powered lamp

Samwise_

Aug 8, 2023
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Aug 8, 2023
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Hi all,

Brand new to this forum, so hopefully this is ok to ask :)

I would like to build a battery powered and rechargeable via usb version of this:
I have some experience with LEDs and soldering electronics, and I'm a software dev but I'm very much in the ideation phase and would welcome any help in determining the parts list. This is what I have so far:

Housing (can source these myself)
Glass, plastic, or acrylic cylinder
Wooden base
Wooden dowel for the centre to hold the LEDs

Electronics
18650 batteries - I'm just assuming that's what I should use but I'm happy to change if there's a better option
Usbc charger for 18650 - ideally this would charge using any standard usb wall plug
LED 60 1m RGBWW - individually addressable would be nice but not strictly necessary at this stage, also I could do more or less LEDs
LED controller with remote and wifi ideally
Some sort of voltage transformer?

Potential inclusions?
Arduino to program the lights

I would really appreciate help in the circuit design and estimating how long and bright a system like this can be running on batteries. I'm located in Australia and would like to keep the budget under $100AUD.

Thanks in advance!
Sam
 

Harald Kapp

Moderator
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Nov 17, 2011
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I recommend you use a power bank instead of the separate batteries, USB charger and the "voltage transformer" (which you would need to bring the battery's voltage to 5 V for the Arduino and the LED strip). Take care to get a power bank that can be charged and deliver power at the same time, if that is required in your use scenario (not all power banks can deliver power while being charged).

You can get LED strips including controller with a set of pre-programmed light effects.
OR you can use an Arduino (or ESP32 or similar if you want WiFi connectivity and control via your smartphone) to create your own set of effects. Have a look at the WLED project for some inspiration.
 

kellys_eye

Jun 25, 2010
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Jun 25, 2010
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6,501
Do some basic tests and calculations first.

i.e. how much light you need (there is a required minimum for practical purposes), the capacity of any battery needed to run it for a given length of time, the recharge time you (or your customers) would find acceptable etc.

Making them colour changing is a gimmick and a potential customer off-putter (imho).

What the market needs (and they actually already exist although not properly advertised) is a standard lamp with built-in battery backup such that you aren't plunged into darkness in the event of a power outage.

But if you're just building a lamp to satisfy your own requirements then stick with the list of tests/calculations first.
 
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