IL604 5mm RGB Slow-Rotating LED w/Resistors (Pack of 30)

The media could not be loaded. Work great repairing a couple Himalayan salt lamps. Didn’t use the resistors because it’s 5v 1a so they dim a lot, the original led in the small was the same 5mm with a 15ohm resistor and the large one had a 10mm with a 10ohm resistor.Series was fine, but I wired them in parallel which shouldn’t need a resistor.Update: definitely use a resistor, first day and red is flickering. I’m going to use the supplied resistors, but I think they dim just a little more then I want.To fix the salt lamp I put two LED in parallel and two resistors also in parallel, working great for a week now and still bright enough for my wife to be happy.

This product is a set of 30 LED/resistor pairs. The LEDs are 5mm, with water clear housings. There are red, green and blue light emitters and a control circuit which turns them on and off over time. One or two colors are on at any time, resulting in light that's red, green and blue, as well as (roughly) cyan, yellow and magenta.There are only only two leads, which are for power: There is no way to control the flashing of the lights, which average (by my quick count) about 2 changes per second. Light output is quite bright (though I have no way of measuring it) and is stronger coming off the top of the LED housing. These LEDs are rated to accept 3.0 - 3.6 volts, and easily operate for days off of a typical 3V coin battery (CR2032, for instance), and are well-suited to make "LED throwies". The supplied resistors are rated at 200 ohms.Note that the same company sells a nearly identical product which rotates among the colors much faster, roughly two times every second (ASIN: B006S21S5U). So far, I have not had any problems with either product.

These little guys are AMAZING !!The forward voltage drop DOES change a bit during operation from about 3.5v to 4.1v depending on color displayed.ALSO - - they do NOT like to be stacked in Series - - they flicker if you do thatBut for $0.33 each - - they work GREATAt 20ma forward current - they are Very bright - easily visible even in sunlightI ran them from a 9v switching supply rated for 300ma - which made 16 VOC !!! (14v loaded with 4 LED total 80ma)BE CAREFUL WITH SWITCHERS ! At LOW current draw, they produce MUCH more voltage than rated ! So MEASURE first !I used a 470 ohm current limit resistor with the above wall wart - which produced between 19 and 23ma during LED operation.This is a Great item (comes with 30 x 200-ohm resistors which went into my resistors drawer :-)

They're nice, they all worked right out of the pack (powered by 2 AAA cells in series, no resistor), they're really bright, no duds, and they're exactly as described on the tin.I honestly don't know what the included 200ohm resistors are for, unless for running directly off 5V/usb. It might've been nice to say what their intended purpose was, but that's not really a complaint (and I have a bunch of extra resistors to play with if I need them). :DMy only actual complaint/nitpick is that the colors don't transition too smoothly. For example, if pink/purple is displayed, it'll hold that color for a few seconds, and then abruptly drop the blue to leave just red. It's a fade, not a switch-off, but it's a *sudden* fade. I've seen color-transitioning Christmas ornaments and the like that do a *very* nice and buttery-smooth transition from color to color, so maybe I'm a bit spoiled. :)(Cup your hand in front of the LED a few inches away so that you can see individual but overlapping circles of color "projected" onto your palm, and you'll see what I mean.)Still, to have the 3 r/g/b LEDs *and* controller, packed on a single 2-terminal LED, that work from a paltry 3V, is pretty amazing. And at 30c per piece, I'm even *more* amazed.

I had to purchase these to make my tealights work properly!I purchased battery powered LED tealights (Search Amazon "Everlasting Tealights Floralyte" and choose the ones sold by Lily's Home). We were led to believe these tealights would slowly transition from one color to the next, giving our centerpieces at our wedding a cool glowing effect with a bit of color. Well when they arrived we were horrified to find out it was more of a flashing than slow transition.We purchased these LED's, and then unsoldered the LED's from the tealights and soldered these ones in their place. Put the batteries back in, screw on the submersible enclosure, and tada! Slowly transitioning tealights! All the timing circuitry is in the LED itself, so all it needs a is a <5V source, like a watch battery.I highly recommend these LED's if you're looking for a slow transition of color from an LED, the effect is pretty cool when utilized correctly.

I've ordered thousands of leds over the years from every site imaginable. This supplier is my new "go-to".Excellent selection, quality, price, packaging, and shipping speed.Sure, you could possibly get a better deal on ebay, but time is money and I'm past my phase of auction sniping and custom searches looking for loopholes and oversights.If you're after a quality product at a reasonable price, look no further, you've found it.No duds out of the few hundred I've ordered so far.The fast blink rgb and slow blink rgb with a few cr2032s look really cool together and make for a neat disorienting effect.