Review on Fielect 50PcsAAA Conversion Nickeling 9 5Mmx9Mm by Tiffany Villavicencio

Delivery was quick, product looks exactly like the pictures. If you're using this for a single LED COB flashlight or similar application with less current draw, these boards will work very well. If you're using them for higher current drain applications like the Neopixel lightsaber, the small part of the spring that contacts the battery isn't designed for high current drain and this will shut down your circuit, which has happened to me. . Three stars only because they should mention it in the description. To get around this, I cut/soldered one of the unsprung plates to the spring itself, leaving a large surface of metal in contact with the negative side of the battery.