I need to make a LED setup for some lamps I'm making, I'm very new to electronics and would appreciate help!

This is what I'm working with:

(LED chipboard)

Sanelec Mod.1322 lightbulb:
127V 60Hz 3W 47mA
lm≥0 700fp

Chipboard text:
120V5W
D33MM
XH-12266
L, N, BD, C1, U1, R1, R2

Inner chips small text:
MB10F
FM3081S8H 20380890
150

(Other electronics)

Adjustable DC-DC Boost Converter Module:
CN6009

Li-ion Rechargeable Battery (High-Drain):
UNIT 18650 C6
2200mAh 3.7V 8.14Wh

TP4056 Lithium Battery Charger Module with Protection:
HW-373 V1.1

+Variety of resistors

(Links from where I bought the electronics)
https://uelectronics.com/producto/xl6009-elevador-de-voltaje-boost-step-up-10w-3a/

https://uelectronics.com/producto/bateria-18650-3-7v-2200mah/

https://uelectronics.com/producto/t...usb-tipo-c-cargador-de-baterias-li-ion-li-po/

Hopefully this is enough information, I'll be attentive to any answers. Thanks!

 

Welcome to AAC!

Hopefully this is enough information,

Actually, it's too much.

What type of LED? How many? Operating current and forward voltage? How many batteries in series?

 

After researching for a bit longer I did find out the chip wouldn't work, I have some RGB LEDs, maybe I can use these with the resistors I have.

I'll test around for a bit with the RGB while I get a LED module.

 

Welcome to AAC!

Actually, it's too much.

What type of LED? How many? Operating current and forward voltage? How many batteries in series?

Current I only have RGBs, Is use 5-15 (need to test brightness) and the chipboard that won't work (because it's AC)

I'd use one battery as it's should be low consumption from what I can imagine, but if it's needed I can use up to 3

To be honest I'm not sure, I got some answers on other forums and it's all about experimentation now.. would still like to get more knowledge & wisdom in any form.

 

Current I only have RGBs, Is use 5-15 (need to test brightness)

Are they common cathode or common anode? What are the forward voltages?

I'd use one battery as it's should be low consumption from what I can imagine, but if it's needed I can use up to 3

A Li-ion battery is 3.5-4.2V. A run down single cell wouldn't have much headroom for a blue LED. What do you plan to use the LEDs for?

At least the batteries appear to be authentic. I have some 18650's labeled as 9900mAh and 88800mAh. Fakes purchased on AliExpress.

 

Are they common cathode or common anode? What are the forward voltages?

A Li-ion battery is 3.5-4.2V. A run down single cell wouldn't have much headroom for a blue LED. What do you plan to use the LEDs for?

At least the batteries appear to be authentic. I have some 18650's labeled as 9900mAh and 88800mAh. Fakes purchased on AliExpress.

I don't know, the RBGs were a gift from a friend and come in a bag with torn Chinese label.

It's for a small stained glass tabletop lamp.

I want the LEDs to light up with the power of around a 3w LED lightbulb, was thinking of using RGBs for extra ambience using different combination of colors, but at the moment I'm ok with something simple.

Maybe I should buy some common LEDs (white/warm light) so it's an easier setup and less energy hungry? Any suggestions?

I got the batteries from a trusted electronics supplier in Mexico City, so they should be fine.

Thank you so much for your help, I'll research the things you mention to understand better.

 

I want the LEDs to light up with the power of around a 3w LED lightbulb, was thinking of using RGBs for extra ambience using different combination of colors, but at the moment I'm ok with something simple.

Varying the colors much will be troublesome without a microcontroller using PWM to light the LEDs.

Maybe I should buy some common LEDs (white/warm light) so it's an easier setup and less energy hungry? Any suggestions?

The only white LEDs I have are surface mount. The forward voltage of white LEDs can be around what blue LEDs are (because some use a blue LED with a phosphor in the lens), true white LED voltages will be higher.

I got the batteries from a trusted electronics supplier in Mexico City, so they should be fine.

Doesn't matter. They all use the same idea. A stack of Li-ion batteries with a voltage regulator that's always running. So regardless of whether they're being used or not, they'll still discharge.

Your trust in the supplier may be misplaced...
Wrong thread...

 

Varying the colors much will be troublesome without a microcontroller using PWM to light the LEDs.
The only white LEDs I have are surface mount. The forward voltage of white LEDs can be around what blue LEDs are (because some use a blue LED with a phosphor in the lens), true white LED voltages will be higher.
Doesn't matter. They all use the same idea. A stack of Li-ion batteries with a voltage regulator that's always running. So regardless of whether they're being used or not, they'll still discharge.

Your trust in the supplier may be misplaced...
Wrong thread...

Hmm, so what's my best bet on the LEDs to choose in this setup, cutting a piece of a LED strip? Looking for low voltage LEDs?

Im trying to use what I got but if I need to change other components other than the LEDs, I'd like to know what I'm missing.

Thanks for your help, it's making me realize that I need to study the fundamentals more..

 

so what's my best bet on the LEDs to choose in this setup

It depends on the RGB LED brightness. One might be bright enough, or you might need more.

When you tested them, which lead was connected to power?

 

It depends on the RGB LED brightness. One might be bright enough, or you might need more.

When you tested them, which lead was connected to power?
View attachment 362480

They're CC.

In a test I did some time back I needed around 10 to archive the light I needed, back then I was wiring it directly to current with an old power supply and using resistors, which added lots of variabilities..
(I'm revisiting this project after several years)

The thing is now I'm working with less Voltage, due to me wanting to rely on a battery (or up to 3)

I'm considering looking for low voltage LEDs to make the installation easier, not sure if a piece of LED strip might work, will check specifications of what I can buy.

 

The thing is now I'm working with less Voltage, due to me wanting to rely on a battery (or up to 3)

I'm considering looking for low voltage LEDs to make the installation easier, not sure if a piece of LED strip might work, will check specifications of what I can buy.

LEDs all have a forward voltage in the 2-5V range. Regardless of whether they're in strips or not.

What current were you operating the LEDs at in the test where you decided you'd need 10 of them? Were you using all 3 colors? Did each have its own current limiting resistor, or did you connect the LEDs in parallel (without its own resistor)?

 

LEDs all have a forward voltage in the 2-5V range. Regardless of whether they're in strips or not.

What current were you operating the LEDs at in the test where you decided you'd need 10 of them? Were you using all 3 colors? Did each have its own current limiting resistor, or did you connect the LEDs in parallel (without its own resistor)?

I don't remember.. but I was using all 3 colors, each pin had resistors, several burned and some where barely lit. Not a very good test per say.

But at the moment I'm thinking of using pieces of a COB LED strip (5-15cm) in a setup like this:

I would like the battery to last around 16-24 hours as the lamps will be used in hotels. I can use up to 3 batteries due to limited space in my lamp.

Will be cutting pieces of COB LED strip, I don't need much light as they be mostly ambient lights, will revisit this with stronger lights another time.

-Battery
-HW-373 (B pads)
-HW-373 (OUT pads)
-Switch
-CN6009 (IN pads)
-CN6009 (OUT pads set to 10-12V)
-COB Strip (5-15cm)

Do you think this would work or is there something I'm missing?

 

What are HW-373 and CN6009? What voltage is the COB LED strip designed for? If the LED strip is just LEDs with a current limiting resistor, you could reduce the resistor value and operate at a lower voltage.

 

What are HW-373 and CN6009? What voltage is the COB LED strip designed for? If the LED strip is just LEDs with a current limiting resistor, you could reduce the resistor value and operate at a lower voltage.

The HW is the USB C charging port for the battery
-Lithium-Ion Battery Charging & Protection Module

and the CN is to increase the voltage from the battery.
-Adjustable DC-DC Step-Up (Boost) Converter

I may be using 10V for longer battery duration, and maybe double the thickness of the lamp base to add more batteries.

These are the strip specs:
LED type: 2835
Light color: warm white
Voltage: 12V
120 LEDS per meter

 

It sounds like you're all set.

I didn't know what the C in COB stood for. It used to mean Circuit On Board. Now it also means Chip On Board.



The strips I have are the earlier versions with discrete LEDs (with resistors).

 

It sounds like you're all set.

I didn't know what the C in COB stood for. It used to mean Circuit On Board. Now it also means Chip On Board.

View attachment 362502

Not sure either, will probably learn more about it as my research goes on.

For now, it's time to experiment, I'll update what it took to complete this project.

Thanks for your help! Communities are amazing..