100pcs 5mm White Blinking Diffused LED Diodes 1.5Hz Flash (Single Color Flashing) Round Lens 29mm Lead DC 3V Blink Bulb Lamp Light Emitting Diode +100pcs Resistors 430ohm for DC 6-12V Included

Summary - Nice pack of LEDs to repair Christmas lightsPros- Common colors, good for Christmas lights- 20 of each color- Good priceCons- Base of light is wider than the light, so it doesn't sit down in the Christmas light baseI used these to repair burned-out LEDs on several strands of C9 Christmas lights. I like the color choices, as they are common to most Christmas light strands. Mine are red, orange, yellow, green, and blue. This pack contains 20 of each of these colors along with 20 white and 2 packs of resistors which is a nice bonus feature (but not useful for repairing my Christmas lights).These function very well, my only minor complaint is that they do not sit snug down in the holder for the LED like the original ones. They do stay in place relatively well once you bend the wires around the base.Speaking of wires, they have a very long wires so once you bend them in place, you will need to snip off the excess. But... Make sure you don't snip off too much or the LED will not have proper contact and won't light (I found this out the hard way).These are very bright and the colors are true. I'll be buying them again.Overall I am very happy with this purchase. If this helped you, please consider giving it a thumbs up. Thank you.

Not sure why, but I was certain that when I originally bought these the middle pin was supposed to be the CATHODE (common or negative), and the outer left or right pin were for the anode (positive) to illuminate the red or green lights (I bought the dual color ones). When I hooked them up, though, it turned out the middle pin was what you connect the POSITIVE wire too. I'm fairly new to small electronics and LED lights, so I'm going to say the fault was my own.DO NOT use these without a resistor (you need a resistor on each outer pin). Do NOT put more than 5V through it WITH the resistor. The green lights did fine, but I blew out the red side on 4 or 5 of them before I realized my mistake. The green side still works, so they're not totally useless.Using these for flight simulator panels. They work really well and seem to be pretty consistent in size. You get a LOT of them for a few bucks, so I'm flush for now. If I needed more, though, I would happily buy them again!

Favorable remarks: neatly packaged and a tested set of the components appeared to perform as specified.I tested with continuous current at 12 volts through each anode, using the supplied resistors: 470 Ohms for red and 430 Ohms for green and blue. The individual colors were very distinct. Then I energized all three colors simultaneously. The RGB LED then gave a very bright, cool-white light. Current consumption remained steadily near 60 milliAmps during test period of 2 hours.Conclusion: I would feel confident using the products supplied at voltages up to and including 12 volts.However, the resistors became very hot. The reason may be that they are rated for 1/4 Watt = 250 milliWatts. For comparison, 20 milliAmps x 12 Volts gives 240 milliWatts. The resistors are being pushed almost to the upper limit of their specification.It seems prudent to think about ways to increase the margin of safety. For continuous operation at 12 Volts and 20 mA I would consider replacing the supplied, 1/4-Watt resistors with more robust, 1/2-Watt parts. Other alternative approaches might include reducing the supply voltage or pulsing the 12-Volt current using PWM.

Only issue I had/have about this product was the box looked like it went to hell and back!Does it affect the product, absolutely not. But if I am spending money on something I expect it (box/package) to be in good shape.But I did test one of the leds and they are really bright w/o any resistors. I am using the leds for HO Scale steam engine. I need to replace lights in steam engine and the rear tender light.These are great for this hobby. Especially for the price. More leds than I will ever use. 👍 👍I do plan on adding 1k resistor and test again with resistors that came with leds.If need be I will edit review if any issues come up but I can't see that happening.

The media could not be loaded. Exactly what I needed for a holiday decor project. My daughter loves Disney Stitch, going to light him up for her. 5mm LED fits perfect inside the small light bulb. I ordered 5mm White defused blinking/flashing version. It blinks about 90 times per minute. Going to power off USB 3v wall plug.

I used these to build my own 7-segment display and they all worked fine and had a nice bright red color. I recommend them highly.

Excelente producto

First off, there's a lot of diodes in a pack which is great! Second, what was supposed to be a simple project turned out to be an all-out project to replace some of the aging and dimming diodes on some of our vintage Lemax collections. Now the lights are brighter and adds character to our entire collection.Color is in the warm white range (not too yellow nor amber)