Now, as a design engineer I personally like the weird looks and technology... but if I put on my marketing hat one could see the immediate appeal of an LED based bulb that,well, looks like an old fashioned bulb.
Which brings us to to an interesting find: the Nikko A19 LED bulb. It's a dead ringer for an incandescent... so much so I took a while at the store trying to decide if I should buy one. The store display said LED, the price tag sure said "LED" but when one peeks into the box, the bulb is a incredible mimic of an incan.
The construction of the bulb is very unique. They blow a glass envelope over the LED arrays... I am amazed that they can stay in process and not destroy the LEDs with excessive heat when they do that. The wiring to the LED array lacks the standard thermoplastic.
The LEDs are mounted to a ceramic tower which should provide good heat conduction. Snuggled inside the tower is an unremarkable AC-DC converter. That looks like the weakest point.... an ACRICH type solution which is just a silicon die would seem like a stronger power converter.
The bulb cannot be dimmed and it appears to have an excellent light pattern and an acceptable efficacy.
It's an interesting technology on the go with this bulb.