I don't see a general sell sheet or data sheet on the Noods. How long will they last? I am thinking of encasing them in epoxy and once there I have no way of replacing them!
Thanks,
Bill
Noods life span
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_bill
- Posts: 88088
- Joined: Sat Feb 07, 2009 10:11 am
Re: Noods life span
Typical LED lifetimes are in the 10's to 100's of thousands of hours. That is assuming that they are run at their rated current levels and with normal free-air ventilation. Encasing them in epoxy is going to decrease their heat dissipation capacity. And all else being equal, running hotter will result in a decreased lifespan.
Running them at a lower current level will give you less light output, but an increased lifespan. I'd experiment to find the lowest drive current that gives you sufficient output.
Running them at a lower current level will give you less light output, but an increased lifespan. I'd experiment to find the lowest drive current that gives you sufficient output.
- Big_Bill
- Posts: 3
- Joined: Fri Mar 17, 2023 2:33 pm
Re: Noods life span
I was only planning on getting their 130mm long kit that runs on a 3 volt battery.
- adafruit_support_bill
- Posts: 88088
- Joined: Sat Feb 07, 2009 10:11 am
Re: Noods life span
Volts is not the issue (at least not directly). It is the amps that matter.
If you are planning to run it with a 3v CR2302 coin cell, there should not be a problem, since the internal resistance of the coin cell itself will limit the current. With other power sources, it is a good idea to add a resistor in series to limit the current as discussed in the guide: https://learn.adafruit.com/noods-ubergu ... properties
If you are planning to run it with a 3v CR2302 coin cell, there should not be a problem, since the internal resistance of the coin cell itself will limit the current. With other power sources, it is a good idea to add a resistor in series to limit the current as discussed in the guide: https://learn.adafruit.com/noods-ubergu ... properties
- Big_Bill
- Posts: 3
- Joined: Fri Mar 17, 2023 2:33 pm
Re: Noods life span
The 3V coin cell is the plan. Thanks for your help!
Please be positive and constructive with your questions and comments.