And what do you do when the lightbulb burns out after only 3 years? The product has long since changed SKU, the manufacturer gets to claim they fixed any deficiencies (and it'll take years to find out if they are telling the truth), and you long since lost any proof of purchase.
Yeah there's not much you could personally do, other than maybe report it to the California Energy Commission. Bulbs need to be lab tested and the results submitted to the CEC, but I'm not sure how the lifespan testing is actually done, how accurate it is, or how easily it could be manipulated.
And what do you do when the lightbulb burns out after only 3 years? The product has long since changed SKU, the manufacturer gets to claim they fixed any deficiencies (and it'll take years to find out if they are telling the truth), and you long since lost any proof of purchase.