Hi all-

I have no background in electronics. My project is as follows:

1) I need to connect together about 20-30 of these small UV LED lights in a square or circular array and have the light on portable battery power.
2) The switch for the lights needs to be on a timer that I can pre-program to turn on the array for a limited amount of time (say 30 minutes) and then turn off. Ideally, that timer would have a "lock out" code, meaning, only I can set the time parameter.


Here are the LEDs (or can be similar): https://www.alibaba.com/product-detail/Zhuhai-Tianhui-Vitiligo-Treatment-UVB-LED_60286555222.html

Any ideas on how these LEDs would connect together and how I can power them?
Any lock out timers recommended?

Thank you very much in advance!

 

Welcome to AAC

These leds on battery power is a problem.
Say for example 20 leds.
In series it will require 100V
In parallel it will draw 2.4Amps.

100V is not a portable battery solution.
5V is possible but at 2.4A, you cannot run for 30min unless you have plenty of battery.

A lock out timer idea for me is a programed PIC. I dunno about any ready made ones.

 

Hi all-

I have no background in electronics. My project is as follows:

1) I need to connect together about 20-30 of these small UV LED lights in a square or circular array and have the light on portable battery power.
2) The switch for the lights needs to be on a timer that I can pre-program to turn on the array for a limited amount of time (say 30 minutes) and then turn off. Ideally, that timer would have a "lock out" code, meaning, only I can set the time parameter.


Here are the LEDs (or can be similar): https://www.alibaba.com/product-detail/Zhuhai-Tianhui-Vitiligo-Treatment-UVB-LED_60286555222.html

Any ideas on how these LEDs would connect together and how I can power them?
Any lock out timers recommended?

Thank you very much in advance!

7.5 V, 120 mA each
3 in series for 24 V
7 wide for 840 mA
That could work.
16 AA, C or D alkaline cells.
If we suggested a schematic could you build it?

 

I have no background in electronics.

The switch for the lights needs to be on a timer that I can pre-program to turn on the array for a limited amount of time (say 30 minutes) and then turn off. Ideally, that timer would have a "lock out" code, meaning, only I can set the time parameter.

How are you at writing code for a microprocessor to run an alpha-numeric display and a data entry keypad?