Display MoreI just did another screenshot sequence.
10 transitions (0.000 to 0.001 amps) over 18 seconds, average Watts 0.0010
I'll try to run another LED test tonight.
( I eventually plan to use my DSLR as a lightmeter.)
I hooked up an analog voltmeterhttps://www.manualslib.com/man…2-602.html?page=11#manual
and ammeter 250 ma Max -- 11.0V so I can't quite get to 12V
https://file.ecmindustries.com…ia/inriver/SP-10A_USE.pdf
Sweeping 8-11, they match the DC supply values.
(I have photos ).
On fakes? Send me a circuit that will drive my LED at even a glimmer with a reading of 0.004 A on my (random store-bought) DC supply AND on my two analog meters.
I have just hooked up a basic circuit and have good illumination at 10.29 mW @ 2.85 mA LED consumption (not tried lowering it yet), and at present the entire circuit uses 132 mW @ 10.91 mA, including a mini DC converter from 12.11 V to 3.61 V, but not including the 120 V to 12.1 V power supply,
<….which I can plug into a Kill-A-Watt to begin to show how ultimately wasteful the whole exercise is to barely light a small LED from power plant to photons. Wtf… anyways…>
10 x 40 mm LED illumination panel, (can be cut down to 10 x 10 mm).
Panel easily lights through the multimeter for all amp measurements.
Supposedly I can measure as low as in the uA range but have never tried.
The DCDC converter itself is using 121.7 mW while powering the LED, although a small dedicated 3.3V regulator IC should do better.
I have a 3 wire mini LED segment DC Voltmeter roughly 10 x 30 mm (used to set and monitor the low DC side) and it uses 180 mW.
330 Ohm resistor now, will increase R until LED drops out.
Just wondering what the goalposts were for doing these LED tests… other than what Rossishows?