and if you buy Convoy buy directly from Convoy, using Simon’s web page at Ali.
You may pay a dollar or two more than the prices you sometimes see at third party sellers, who sometimes offer more chips or different emitters.
The resellers also also often omit the retaining ring for the driver and instead or on top of the retaining ring plop big globs of solder so you can’t easily modify the light.
And from time to time counterfeits have also been for sale.