Okay, this little electromagnet is seriously powerful for its size! Running on 12V DC, it can lift a whopping 55 pounds (25kg) of steel or iron - which is pretty impressive for something that measures just 40x20mm. The threaded design with 4.5mm diameter makes installation straightforward, and the 21cm leads give you enough wire to work with for various projects. It's built with quality metal components and electronic parts that feel durable, not cheap. Weighing only 135g, it's lightweight but doesn't feel flimsy at all. This thing has so many practical uses - from DIY projects and workshop applications to vending machines, auto door locks, game machines, and automatic control systems. The key is it only works on smooth, flat ferrous surfaces, so keep that in mind for your specific application. What's cool is it engages instantly when power is applied and releases immediately when power cuts off - no residual magnetism issues. The construction feels solid enough for industrial use but priced accessibly for hobbyists too. If you're working on robotics, automation projects, or need a reliable holding mechanism, this electromagnet delivers serious performance for the size and price. Just make sure your power supply can handle the current draw when it's engaged. For the money, you're getting professional-grade functionality that works exactly as advertised. Definitely recommend if you need reliable magnetic lifting power in a compact package!
Free 30-day returns 
Free 30-day returns
