Do these bulbs turn on instantly when power is applied? The last bulb that I bought (different brand) had about a 1.5 second delay which is annoying.
632474
Yes, after replacing my halogens with these LEDS I am very pleased with their functionality. These bulbs turn on as soon as power is applied, and dim quite nicely as well.
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.
816266
New CFLs turn on within a second with no noticeable warm-up period. Rest at times it depends on the ambient temperature. In my case, it achieve its full brightness in almost no time.
395392
I have two setup, both on CF bulbs. I have 8 bulbs on one circuit, and one of the bulbs I noticed flickers for a few minutes after you turn them off. Something new I found out, when the power goes out, then comes back on, the lights on these units come on with the power.
2159048
They do work, but make noise. My experience with these bulbs in particular is that they give off a really annoying hissing sound when used with a dimmer switch. All 4 bulbs in my 4-pack did the same thing. I also tried GE 150 watt incandescents and those bulbs did not make any noise.
411407
They shouldn't do that..Make sure the bulbs are tight in the socket or you may have a loose connection in the wiring or a defective switch.
2186062
Yes - I use them for this exact purpose and they are full bright instantly. There is about a half second delay between the time it receives power and actual light however.
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.
2016400
I bought a box of 6 bulbs. One was not working from the very beginning. I installed two new bulbs and a starter, and it works now, but the noise is loud, and when I turn the switch on it gives a loud noise, which I didn't have before with old bulbs. My impression is that the quality of these bulbs is not good. Cheep price is not for free. I might be wrong. Good luck.
1257209
Mine did the same thing, after about 20-30 hours of use it stopped. The bulb will also occasionally flicker, though this didn't begin until it reached about 500 hours. For the money, I had no real complaints, but if you can afford it, I would go for the factory original...... most of these aftermarket bulbs do odd things, and rarely do they work perfectly out the box.
1203548
Anything that you plug in to a timer will get power when the timer turns it on. These will light up upon getting power. They do not have a built in timer. They do not soft power on.
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.)
236673
I've the cheaper bulbs on a different type lamp. All of the bulbs stop working after a few hours. The higher price bulbs I'm using in a verilux lamp which I have used for four to five hours for about 4 months and I'm still on the first bulb. If it was the lamp or not I can say because the verilux bulb would not go in the other lamp and the same is true of the cheaper bulb in the verilux lamp.
908907
When they're cold the delay is maybe 1/4 or 1/2 a second. Most noticeable when using a dimmer turning them on slowly. I have them in some recessed lights in the kitchen mixed with halogen lamps.
1398553
There isn't a flicker or a delay. However the light does have to warm up so it isn't as bright when you first turn it on. Also depending on who installed your light fixture when you first put the light bulb in keep the light turned on for an hour. We had to hire a electrician to tell us this because the builders that built our house messed up on the wiring and our light was burning out every six months in one of our bathrooms. The rest of the house the lights have lasted over three years now.
1488505
I don't notice a delay between flipping the switch and seeing light. I just checked.
2155743
I have mine on a timer and it works just fine. Note that these lamps take a couple of seconds to light up after power is applied. They don't come with an electrical plug, you'll have to add one to the 3 wire cord that comes out the back of the lamp. I assume this is because they are sold world wide and electrical connectors are not the same everywhere.