On Tuesday, September 25, 2018 at 12:41:01 PM UTC-7, Ned Simmons wrote:
On Tue, 25 Sep 2018 12:08:10 -0700 (PDT), whit3rd
wrote:

On Tuesday, September 25, 2018 at 5:54:11 AM UTC-7, Ned Simmons wrote:
On Mon, 24 Sep 2018 19:30:37 -0700 (PDT), whit3rd
wrote:

On Monday, September 24, 2018 at 6:12:23 PM UTC-7, Ned Simmons wrote:

...you can't just connect parallel strings of LED's

Yet, it's done all the time.

Or you could avoid the work-arounds and potential pitfalls: pitch the
ballasts, and purchase lamps with built-in LED drivers that operate on
line voltage.

What kind of 'built-in LED drivers' are you thinking of? Gizmos that
switch OPEN when the current goes too high? Or, complete current-regulated
DC power supplies? Something as reliable as a magnetic ballast is not
going to look like a silicon IC, and take AC line input, and spikes, gracefully.