00:00Good current is boring. Boring is what you want.
00:045 boards here fight unstable current, cheapest $0.32.
00:08Start with the 2-in-1.
00:12CN3163 plus CN5711 board charges a 3.7V-4.2V lipo from a small solar panel and drives a high
00:19-brightness LED off the same cell.
00:211 board, no second regulator.
00:25$3.69, 4.8 stars, near 5,000 sold.
00:30Best pick if your project lives outside.
00:33Then the cheap fix.
00:35Adjustable constant current driver, 30-1,500 mA, 3.3V-5V in, buck output, PWM control.
00:44$0.32.
00:46Rating 5.0.
00:49By 5, stop swapping one board between builds.
00:53Cheapest way to kill flicker on small LED loads.
00:56Need real power?
00:59400W boost converter, 15A max, 8.5V-50V in, 10V-60V out, constant current mode.
01:06That current limit is the point, it holds LED strings steady instead of sagging.
01:12$5.34.
01:14Big headroom for the money.
01:16If you want the plane's CN5711, here it is.
01:21PWM control, 30-1,500 mA adjustable, DC 2.8V to 6V in.
01:28Sold as 1 or 20 pieces.
01:31$5.51, 4.7 stars.
01:35Grab the 20-pack if you build in batches, per board cost drops hard.
01:40Last one cuts the other way.
01:42XL-40-16 step down, 9A, up to 300W, 5V to 40V in, 1.2V to 35V out.
01:51$4.52.
01:53Use it when your supply voltage sits above the LED string and you need to drop down cleanly.
01:59Skipped, on-screen B-roll cues and timestamps.
02:01Add when editing.
02:02Add when editing.
