This is a DC sucker type electromagnet. The magnetic poles of the electromagnet can be changed by swapping the negative and positive poles of the input power. With a pretty small body, this electromagnet can be applied to DIY electromagnetic lock, smart storage cabinet, and intelligent door, etc.

Electromagnetic usually consists of a coil of wire wrapped around an iron core. When currents pass through the wire coil, a magnetic field, which makes the iron core magnetized, like a permanent magnet. The iron core material should be made of pure iron or silicon steel which is easy to be magnetized and demagnetized. In this way, it will be magnetic when powered on and lose magnetism quickly after power-down.

Specifications:

• Rated Voltage: DC 5V
• Rated Power:
• For 8kg and 20kg:1.5W
• For 25kg: 1W
• For 30kg and 35kg: 3W
• Holding Force: 8Kg / 20kg / 25kg / 30kg / 35kg
• Wire Length: 28cm

Note:

• electromagnets are specified with "holding force", say 8Kg. This is not how much weight they can pick up! Divide the holding force by 5-10 to get a rough estimate of how heavy a thing it can pick up.
• The electromagnetic can withstand long-term electrify when attracted onto the surface of an object, but it should not be electrified for a long time when there is nothing to attract.

Warranty: 90 days

• Warranty will not apply if Product fails or is damaged after delivery to you due to accident, abuse or misuse.

Package Includes:

• 1 x 5V Electromagnet
• 1 x Mounting Screw