R16-504BD 16mm 按鈕開關（黃色）

The yellow cap is a nice bright pop against the panel, and the four pins made wiring it into my project straightforward. The round button sits flush in that square casing, which looks way more polished than I expected for the price.

I needed a non-latching switch for my control panel and the square casing made mounting it flush really easy. The yellow button stands out nicely against the black panel.

The four pins made wiring it into my panel project straightforward, and the non-latching action feels crisp every press. Yellow really pops against the black casing, so it's easy to spot in a dim setup.