When do blinking lights become just plain annoying?

Phil W Lee wrote:
James considered Tue, 22 Mar 2011 09:31:40
+1100 the perfect time to write:

Phil W Lee wrote:
SMS considered Sun, 20 Mar 2011 21:34:31
-0700 the perfect time to write:
One of the major advantages of LED headlights is that they tolerate
higher voltages and higher currents.
But the biggest advantage is the efficiency, followed closely by the
reliability.
How closely followed?

That probably depends more on the type of cycling you do than anything
else.

Precisely my point to Frank, earlier. Thanks.

JS.