For my USB-powerbank-powered-by-ebike-battery-project I was looking at AliExpress car panel items.
There seems to be a semi-standard for 3cm car panel items.

A common manufacturer seems You Liang.

Here’s an overview I made for myself.

Brand Type Input Output
YOULIANG DKTU 36v-108v 2x5v2.1a
YOULIANG YPUq 12v-24v USB-A (18w) + USB-C (18w)
YOULIANG ATU(QJ) 12-24v USB-A (22.5w) + USB-C (18w)
YOULIANG YW 12-24v Voltage Meter
YOULIANG TU(QC) 12-24v USB-A (18w) + USB-A (18w)
YOULIANG CC 12-24v Clock