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  1. R

    Design fix on a battery powered COB LED

    I didn’t measure the dying voltage.
  2. R

    Design fix on a battery powered COB LED

    Is their a way for me to use 2 AAA’s? If so, what else would be needed to make the 3V step up to 12V? I would imagine I could use a fixed V step up converter. I have only found variable/adjustable converters on amazon. I figured if the make a fix voltage converters they would take up less space...
  3. R

    Design fix on a battery powered COB LED

    This is another one if the LED’s I tested. Maybe this one will have better information needed. Should I order some components? If someone told me the sizes on various resistors or other components that may be useful, i’m sure they don’t cost that much and I can order them so they’ll be here in...
  4. R

    Design fix on a battery powered COB LED

    This is a pic of the chart I made. It just shows the drop off. On the left is LUX (The number isn’t very relevant. It just shows the drastic drop off) and in the bottom is length of time in 10minute intervals.
  5. R

    Design fix on a battery powered COB LED

    This is the style I gave you the amp readings for. I have used 3 different styles with very similar results.
  6. R

    Design fix on a battery powered COB LED

    Thank you all for the help. I figured if you all are kind enough to help me out, I had better not make you wait, so I ran out and grabbed another Fluke. I tested the old batteries from last nights test (about 12 hours on them) and it read 9.5mA. Then I switched out the old batteries with...
  7. R

    Design fix on a battery powered COB LED

  8. R

    Design fix on a battery powered COB LED

    I’ll have a picture posted shortly. Unfortunately, I don’t believe I have enough space for 2 AA’s. If I were able to make them fit, it would be very tight. Show us a picture or schematic of your project including data on the LEDs. You only gave two bits of information. 24 LEDs and 4x3v button...
  9. R

    Design fix on a battery powered COB LED

    3 volt, CR 2032’s. I have been using 4 of them. I’m an electrician/instrument tech by trade with zero experience with small electronics. Sorry for the lack of information I provided. The reason I have tried button batteries is because I need to keep it as small as possible. I need all these...
  10. R

    Design fix on a battery powered COB LED

    PROBLEM: 24 SMD COB LED has too much illumination drop off over 3 hours. Currently powered by four 3V button batteries. PREFERRED SOLUTION: Get this battery powered LED to perform more consistently over a few hours. THE STORY: I’m working on a little project at home for a custom show...
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