Review on ✨ 13FL Electromagnetic Aluminum Indicator - Mxuteuk, 1 Inch by Raymond Iglesias

For non-critical home and automotive projects this is a good option. Absolutely no frills (well, they have an LED), no built-in recoil suppression, and the LED is polarity sensitive. Connect positive to 8 (right side) and negative to 7 (left side). Use your own recoil suppression diodes (I like 1n4007 or Mallory PTC 205 for this application). Some engineers use a capacitor, but I'm old school and prefer diodes. branded with several gibberish names, they are all the same to this day. Cheap nameless relays (which work fine short term and maybe long term) #2 - Good performance, LEDs are easy to see #3 - Works as well as Idec, Allen-Bradley etc for a small fraction of the price. #4 - Comes with decent sockets, a 3 relay wide aluminum DIN rail, and even screws to attach your DIN rail! Cons: #1 No top mechanical display box, there is a window for one but no flag, there are 2 very small windows (no frosted areas) on each side right next to the pins but almost impossible to see when they are in the panels are located. Diode #3 is a polarity sensitive LED, don't follow the rules, check. (Ask me how I know) #4 - Cheap nameless relays - NOT for use in mission critical applications. Do not use it to control a heater or anything that could burn down a building or otherwise endanger life or property. At the moment they are working fine, some of them have been used for a month or more with no problems, but in the long run who knows? a few spare parts in a panel box. All in all I managed to justify 5 stars, the cons, none of which are serious, are offset by the price. I'm gaining confidence in them over time, but I will not operate dangerous devices with them, nor do I advise you to do so. Apart from that, on closer inspection they seem to be built in the same way as the brand models, without any visually disturbing elements. I'm wondering what the contacts are made of (but they seem to be "standard") and if the coil is actually copper (it's soldered in place and seems to weigh enough so I'm assuming it really is real copper and not "CCA" (copper-clad aluminum" is the bane of electrons and their guardians everywhere.) All in all, this is a great product for the hobbyist (or a small business in financial trouble) to use in intrinsically safe device controls I owned and ran a small industrial control.business before retiring and have been using relays since the 70's - just so you know I'm not new to this product PS an Idec, PB or AB -Relays like this would cost anywhere from $20 to $50+ depending on where and how much you buy.(Please don't judge my panel, it's a work in progress (but a work in progress) and not energized yet)