Based on my observations this wiring and connecting product is a great addition to any industrial and scientific setting. The doorbell switch provides easy access and functionality, while the 20 pieces offer ample supply for multiple installations .The size and shape of the switch make it easy to install in tight spaces or on larger surfaces. The only con I can think of is that the switch may be too basic for some specialized electrical needs. Overall, the Uxcell Doorbell Switch 20 Piece is a reliable and affordable choice for any industrial setting..