I would NOT under any circumstances use them for anything except "driving lights" on a bar to make the bike look HUGE down the road to oncoming traffic.
They are not near good enough for use as a Headlight.
...And that's because they aren't headlights, they're driving lights.
I wouldn't use an LED driving light
for anything other than a driving light either.
If you want an LED headlight
, like OP asked about, you use an LED headlight
You can't compare the things you put on your mower to a real LED headlight.
I installed a pair of these
in a buddy's GS1250F and it's single bulb low beam easily outshines my 1500's dual lowbeam Silverstar Ultras and it's single high is comparable.