I bought a bunch of Phillips' "alien-head" bulbs. One died after two years. Phillips replaced it even without a receipt and without having to return the broke

I bought a bunch of Phillips' "alien-head" bulbs. One died after two years. Phillips replaced it even without a receipt and without having to return the broken bulb. They also replaced one which worked, but was buzzing. Their newer glass ones look nicer, so I'm very satisfied. I'm surprised they didn't want them back for failure analysis, but perhaps they have plenty already.