Instant-on? Some LED bulbs light instantly, while others have a half-second delay. Which is this?

Question

Instant-on?  Some LED bulbs light instantly, while others have a half-second delay.  Which is this?

Accepted Answer

I have never encountered LED replacement bulbs with a 1/2 second turn on delay, including these. I would be very curious to know what would cause this since it is a long time in the electricity world.

The thing I have noticed is that some manufacturers do not know what color temperature warm, soft, cool,and day light should be. 2700-3000 is warm white I believe, 3200K is definitely soft white (incandescent temp), 4400K is cool white (standard 4' long fluorescent) , and 6000K is daylight. soft white is good for living rooms and bedrooms while cool white is good for kitchens and garages. Do not ever buy a 5000K bulb, this light is greenish and is horrid looking. The lumen levels seem to be good compared to incandescent bulbs

I have a 20 year background in the pro video and film industry in service and engineering.

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