Quote Originally Posted by Hornblower View Post
FWIW and IMHO, this is false advertising, especially on the hi beam bulbs. A good ballpark number for LED bulbs is 100 lumens/watt. Using watts = volts X amps, you can do the math. Assuming the amp draw figures are true, the lo beam bulbs may indeed produce around 2100 lumens (with running volts around 14) but the hi beam bulbs would only produce around 3200 lumens at the same voltage, not 4800 lumens. That said, actual lumens at or above 2400 will provide good lighting for down-the-road visibility. Anything greater than that is "gravy".
Ken,
You've done more work on/with lights than any three people I know, so your HO is valid in my book.
The "100 lumens per watt" number - what is the limiting feature there? Simply LED technology?

The Low Beam number (@ 14v) would have to be ~115 to get the 2400 lumens.
The High Beam number (@ 14v) would have to be ~150 to get the 4800 lumens.

I might almost buy into the 115 number. That's close enough to "~100" to make it palatable.
But to get to 150 lumens per watt sounds like complete technological revision or, as you mentioned, false advertising.
Unless their amp draw numbers are off.....

I'll be emailing SoCal with some specific questions.

As always, thanks for the lesson my friend.
Cheers,
Steve