Hi, Lee
I bought loads of those through Ebay, but found that that the breadboard type 'dupont' connectors were handier for the LED connections on the HL V6.0 series boards; if that's what you're after.
I just used them to connect the Convoy Light to my Panther's V 6.0 board, in fact. I also use them- with 3vdc battery packs- for circuit testing.
Here you'll see various types of connector. I ruled the two-pin battery type out, and found the breadboard single-pin types a better fit in the board.
This pack was cheap as chips.
It has Male-Female. (if it's still allowed to use these distinctions-

); male-male; female-female.
I also bought micro JST, and 2.5mm JST union connectors.

"Get your facts first, and then you can distort them as much as you please"- Mark Twain.