The Philips A19-style bulbs kinda look like futuristic tube-ish light bulbs. It's just a circular ring of LEDs inside. One section goes out, then the next, in a

The Philips A19-style bulbs kinda look like futuristic tube-ish light bulbs. It's just a circular ring of LEDs inside. One section goes out, then the next, in a cascading failure.