Okay, maybe I didn't state my intended goal(s).

I want low power draw, so the Bike stays lit all night. The LED Red and Amber lights are doing fine, and I am happy with them. But they did not appear in the local NAPA auto parts store until 6 or 7 months ago. I want to use stuff that's off-the-shelf, and available at brick-and-mortar retail stores.

I don't know about high power LEDS, with heat-sinks. They can't be 98% efficient if they need heat-sinks.

I want to use the 20 watt halogen MR-16 as the High-Beam , and these other new lights are a possibility for a Low-Beam, but I haven't decided yet.

And I haven't decided one, two, or both, maybe I will use ONE of these cheap , $24.99 lights, instead of both of them, 1.2 watts times two is 2.4 watts, and 1.8 watts times two is 3.6 watts. ?
That's $24.99 a pair.

But I think after watching the market, that LED Lights are just now reaching store shelves, where you can look, and touch the product before buying, rather than having to buy online. And if someone asks me where I bought it, I can tell them "go to such and such store"...

Yes , I want something like this as a Low-Beam.

But I will also look at the local Electrical Supply House for the LED version of the MR-16 , per Wilbur Bud's suggestion.

The LED Lighting Field is growing exponentially at this point in time, and a new product could appear at any time!!!