These are them. It says 'built in relays' and '20 watt' but I looked inside the case and saw nothing like a relay. Plus, a relay would require additional wires to be installed but the instructions don't call for any. I also doubt these are 20 watts, the wires they come with are really thin so I think that's more marketing speak, and the reason they don't require a real relay is they don't consume all that much power. The light beam is horizontal and very concentrated and from experience with other LED lights, I deduce from all of this that they just put out a LOT of light for not that much power input - and the focused horizontal beam also helps a lot. Maybe they are 20 watts all combined: both white ones + both yellow ones. But you can only light one set (yellow or white) at a time.
My experience from last week's 120 mile commute to LA: as I set off before 4 AM (really dark, and we live in a canyon and the first 7 miles are on unlit twisty roads) I found my main beam had given up the ghost. I turned on the white auxiliary light and it did just fine the whole way, where I could not run the high beams as I would blind oncoming traffic. That's how good these little lights are, I had no problem riding the whole way with just that one little auxiliary light (I only installed one of the two from the set, see pictures above).