Would I be correct in suggesting that corn type LED lamps are best
suited to situations where the light required is at right angles to the
axis of the light please? As in a outside lantern type of fitting..
I've got a huge one in my living room (150W equivalent I think). It's got LEDs round the sides and the end. It's mounted vertically (pendant fitting way up), and lights the room as well as a CFL stick or an incandescent.
I much prefer them to CREE ones with a smaller number of very hot LEDs that don't last very long. But my favourite are striplight LEDs (look just like flourescent tubes till you turn them on then the light is much nicer (no flicker)).
A high IQ is like a Jeep. You still get stuck, just further from help.
On Mon, 22 Aug 2016 16:55:03 +0100, Harry Bloomfield 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. Assuming this is
the type you mean, then yes, imo! They'd be better suited, especially if
the luminary orients the lamp in the "Cap Down Burning" position to avoid
overheating the electronics in the base due to the very poor
ventilation characteristics most such outside luminaries are cursed with
in the interests of keeping them reasonably proofed against rain ingress
(the tiny breather holes, designed to prevent build up of damp and
exclude most insects larger than an Earwig, don't really count as
ventilation holes for the purposes of keeping the lamp cooled).
 For lamps rated less than 20W, such "electronics" may be nothing more
than a "capacitive dropper" rather than a built in sophisticated constant
current driver module. If a suitably high temperature capacitor is used,
they may be able to tolerate much higher temperatures than a
"transistorised" switching regulator module could ever hope to cope with.
Then lamps built around COB (chip on board) LEDs where the bare modules
come in various shapes and sizes, but typically submerged in yellow
Now there are corn-cob style lamps using COB LEDs!
On Mon, 22 Aug 2016 18:26:40 +0100, Andy Burns wrote:
IMO it's best to avoid "corn cob"; yes, "corn" is because the lamp/LEDs look
a bit like corn-on-the-cob, fair enough, but, although some corn are COB
most are SMDs.
I've some v. good COB lamps, with the LEDs on v. translucent ceramic blades
and they give good dispersion and stay cool.
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