3 ms·
We're mostly on the same page, but there are some caveats to buying the heavier bulbs, even assuming the weight is all heat sink- because that won't matter if t
by droopyEyelids 4y ago
We're mostly on the same page, but there are some caveats to buying the heavier bulbs, even assuming the weight is all heat sink- because that won't matter if the heated air has no where to go!
An expensive bulb with a nice heat sink will fail just as quickly as a cheap one when you put it in a well-sealed can light or something else that traps all the hot air.
- xxs 4y agoIf one bothers to care about heat sinking, they might actually test the thing and opted not overdrive it. It's just a good totally layman indicator. Funny enough most mains/350V DC, chips tend to have a limiting resistor for the current drive - lower resistance = high current. Most (if not all) have two resistors in parallel (for a better control, and less power per resistor) - desoldering one would greatly improve the lifespan for a minimal luminosity loss. So by picking a larger heatsink, they might picked a bit large value for the resistors as well.