50pcs 12 Volt 3mm Red LED Lights Emitting Diodes Pre Wired 7.9 Inch DC 12v LED Light Diffused Colored Lens Small LED Lamps

Nice and Bright

Nice color selection with good brightness (even at 5 VDC). Colored wire is plus, black is negative.

For some electronic projects around the house, with varying voltages from 5VDC to 12VDC, I would like to have some status lights included. These LEDs fit the bill nicely. Although the leads are around 30 gauge (measured 0.31mm thick on the tinned ends), their 7" usable length is plenty. The first 0.8" is the heat shrink around the built-in series resistor so if you have a shallow mounting place, be aware you'll need about an inch below the base of the LED to route the wires. Intensity is quite good even at 5V - tested with an old cell phone AC adapter rated at 4.9V. Current draw at 5V is about 5mA when the LED is on. Items arrived in a thin, long cardboard box, inside what looks like an antistatic ziploc bag. Quick count seems to say that there are 52 LEDs in here. First use will be in a project I'm doing to convert a battery operated only device to allow normal use of an AC adapter but fall back to the battery pack if AC power is lost. A coaxial power jack and a relay is all that's required, along with a bit of re-wiring of the power leads inside the device. The LED will flash whenever main AC power is off. I know that using a flashing green light to indicate a loss of power seems to go against more logical choices (red, yellow), but I chose green for the brightness over those others. The device already has a built-in flashing red LED to indicate low battery so that's another reason to go with green.

I got these for a project board and they worked well overall. I really appreciated the built-in resistor and pigtail — it made installation easier and cleaner. Just be careful with the actual connection points, as they can break easily if you’re rough with them. Also, I only needed the red and green LEDs, and I noticed the red ones seem to have a slightly larger diameter compared to the green. It didn’t affect functionality for my use, but it’s something to be aware of if you need uniform size.

Very very good

love them they work great

Model Railroad hobbiest here. Great for HO Scale locomotive head lights. They come prewired with resistors. They fit directly into the headlight slot even if you’re missing a lens.

I bought these as a simple way to confirm whether a security camera is frozen or actually showing live footage. The area under surveillance doesn’t change much, and I’ve found that many modern cameras tend to lock up during 24/7 monitoring. This particular camera watches an area prone to theft and was set up to be intimidating. Flashing lights makes it be just that. The problem is that when the camera locks up, it’s hard to tell unless I notice the second hand isn’t moving. Because it’s an infrared camera, everything is shades of gray. White text over a gray background is hard to see, but a few blinking lights is not hard to see. That’s where these come in. I wired the LEDs to a USB 5V → 12V fan speed controller so I can adjust the blink rate by varying the voltage (5V faster, 12V slower). It’s a neat, low-effort solution. I only needed four, but they come in packs of 50... so for rougly $10 I’ve basically got a lifetime supply. Build quality is solid for what they are. I just stripped the wire housing and connected the leads to my power source. The size was perfect for my setup.

works fine

Great LED's with terrific colours. Ready to be connected directly to 12v. I am using them in a marine environment with great results. Sent to me on time and well packaged.

A nice collection of color LEDs are 12 volt I bought these because I was a nice collection of color LEDs are 12 volt I bought these because I was making a and LED Vue meter I'm afraid I don't have anything else to say other than their LEDs that's pretty much what they are.

Perfect lights for dash on Harley. Will never forget to turn something off. Will see what is on.

Es justo lo que necesitaba, muy bien protegido funcionan al 💯👍