Johnny B Good wrote:

I don't know about these "Corn" type LED lamps of which you speak,
unless you're referring to the "Corn Cob" type LED lamp.

First came LED corn cob lamps, e.g.

http://img.dxcdn.com/productimages/sku_45375_1.jpg

Then lamps built around COB (chip on board) LEDs where the bare modules
come in various shapes and sizes, but typically submerged in yellow
phosphor e.g.

http://img.dxcdn.com/productimages/sku_373438_1.jpg

Now there are corn-cob style lamps using COB LEDs!

http://img.dxcdn.com/productimages/sku_239373_1.jpg