Are these lights "instant" on as soon as the light switch is on or is there a short delay (1/2 second or so) before they come on?
2080625
There is a short delay from the time the switch is turned on until there is light. At first it is unexpected and irritating, later the delay is just irritating. I made a call to Lutron (the makers of the doming switch I use for the 6 rooms I have Kobi bulbs in probably 30 bulbs) and was told that is to be expected and that neither the installation (bulbs or switch) was bad.
2080626
Yes there is a delay of about 1/2 second. I don't find that it's a problem because the light shows up bright immediately. Compared to a cfl bulb which takes a lot longer to turn on and to brighten up, the LED bulb is a great improvement.
2080627
After sitting a while, there is a very short delay -- it felt like 1/8 of a second. When I turned the switch on, off, and on again, there was no delay.
2080628
Unfortunately i didn't end up keeping this bulb. I bought 3 different ones and the one i picked was from g7. What i found with all of them was there was a short delay with start up its nothing be worried about.its hardly noticeable and is about 1/2 second.
2096252
hello thomas, there is no delay for this led bulb. (instant on when power is switched on) also be advised these ecobright led bulbs are not designed for totally enclosed fixtures & are non dimmable. these bulbs are well built & are bright & a bit bigger around than some others. regards, neil
1928221
No, just tested by turning breaker off to these lights. When I turned breaker back on the lights had to be turned on manually. As Dave states however they came back on at the dim setting I had previously set them to.
1169570
No. All devices controlled by the master device turn on immediately. There appears to be no delay.
375968
Just like someone else mentioned, they come on almost instantly (there's a fraction of a second delay), but it does take maybe 10 seconds or so before they reach their maximum brightness. The color of the light is definitely closer to that of an incandescent bulb than a lot of other fluorescents, but is still not exactly like the light that you'd get from an incandescent bulb.
340252
These are standard spiral cfls. They are immediate on/off lights. I would have to say that they should probably work fine with a timer as I can't think of any reason that they would not. No, I haven't actually used them this way, but with my understanding of electricity and how it would work, I can't see any issues with it. The timer should do no more than open up the flow of electricity to the bulb when the timer turns on and then restricts the flow of electricity when the timer goes off, so there should be no issues with them whatsoever. I hope this helps.
1318392
There is a slight, about 1/4 sec., delay, but, yes it is a momentary switch. I have no trouble managing the delay. I am using it with a winch motor.
217180
Yes, my bulbs were instant on. That is until one stopped coming on for good.
1195713
I didn't notice any delay. They usually come on instantly with full light, but please also ask seller.
716959
My experience is instant on. These bulbs come on instantly to full intensity even on the coldest nights, -20f.
1901305
To the eye, it appears that there is no delay at all. I have viewed the brakelights in the reflection of a storefront window via my own mirror and it appears instantaneous on the first illumination. As for the tenth of a second, get real; buy the bloody thing and you'll like it!
1947166
It is quite quick so I do not notice a delay other than if it is not set for using the flash, then there is a slight delay with readjusting to the lighting required.
1709112
There is no perceptible delay as far as I could tell. I run LEDs in my setup, and it seems instant. It seems to me that the light comes on just as fast with the unit in line as it would without.
1058497
Not really. They do give decent light right away, but they get to full brightness over about a minute. Where I use them, it's not a problem, but if it was over my desk it might bother me. (Interesting that I now see two people said yes. We all must have different ideas of "instant on" means.)
689773
It's "instant on", but, like all fluorescent lights, it will take a minute or two to obtain full brightness. The colder the temperature, the longer it will take. Note that the narrow base can be a great advantage in fixtures with limited space.
1475096
You can click them on and off with a button on the side. So I guess if you pushed the button on and off really fast they would blink....otherwise no they just stay on.
942371
I believe that there is a pretty significant time delay built into these things. They are not "instant ON" and "instant OFF". I think I would put black electrical tape over the sensor, then wait for a bit after you energize it to give it time to "decide" that it should switch on. If it doesn't come on 5 minutes or less, I'd guess that it has failed. If that's the case, the manufacturer likely owes you a new one!