Do these bulbs have an 'on delay' or do they turn on instantly? Also, how far down do they dim (estimated %) before going just completely dark? Thanx!
1463762
Excellent Questions. And I'll add an important note on this type of lamp at the bottom. First of all, there is no delay - they light instantly as should always be the case with LED lamps and luminaires. As to your second question, I have not tried dimming THIS lamp on either a traditional or commercial dimming system. This is a great question as dimming and LEDs is tricky business and claims of dimming is no guarantee that it will work for YOU. If you're a homeowner, you really have to try each manufacturer's lamp on your existing system to know exactly how it will respond. If you are a commercial interest, you really need a Lighting Designer (hint hint) to suss out your needs and to specify a system that will perform to your satisfaction. In many many ways, the LED lighting revolution is the wild west, and it's far easier to make claims than it is to deliver results. IMPORTANT NOTE: MOST LED lamps are not rated for enclosed fixtures! What you may well not understand is that "Open" as defined by Underwriter's Laboratory includes fixtures that LOOK open (e.g. any recessed downlight). If the fixture is closed at the TOP, it is considered enclosed. So this includes many pendants, most if not all recessed lighting, and even track lighting. LEDs are really vulnerable to heat and these "high output" white LEDs are driven to their thermal limits. It is really easy to spend money on a lamp that claims to last 25,000 hours, but that will fail quickly when put in the wrong luminaire (fixture).
1117188
They are instant on. However, as with most cfl's they still take a couple minutes to really get up to full temp.
217180
Yes, my bulbs were instant on. That is until one stopped coming on for good.
678564
They are pretty low. They are not as bright as the halogen bulbs that they replaced. Don't have a way to test but I would say they are about 60% of a halogen bulb. I'm using them for landscape path lighting, the LEDs are adequate for that purpose.
2284099
They are not bad. I have had some 13 watts bulbs come on faster.. but it is not like it takes a minute before you see bright light. I do not know on cold weather. I have not tried these outside. I usually leave my outside cfl on 24/7 in cold weather, because they die out more quickly if you turn them off and on all the time in the cold.
2020444
I have not had any issues with the dimmer switches. The lights work as they should on any setting. They will turn on at the lowest setting. So far I have purchase around 20 of these bulbs to replace the old style lights.
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.
522346
I have a Toyota Tacoma which dim prior to shutting off . These dim like the original bulbs on my truck . Will they on your make and model I'm not sure.
1280125
Are they CFL light bulbs? I heard, but don't know for sure, that they may not be able to be dimmed. I'm probably all wet. My Lutron works GREAT and I love it. So sorry for your woes.
1277579
No light until the click. It is off or on; no in between. I do believe there is some variations in the actual light you receive. These are low end, but good value.
202556
These must be in a dark room before they come on. I put in 2 bathrooms for night lite. When I turn on the bathroom light at night, they go out. As I leave the room, turning the light off, I notice a 2-3 second delay. Then they come back on. If this does not occur, I would request replacements. Mine worked fine from the 'git-go'.
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.
1985574
Bulbs do not dim. They are bright. Sometimes we just light every other socket. Hope that helps, I don't know how many lumens , sorry.
1023270
Yes and no. Limited levels of dimming at low levels. At a certain point they just shut off. It's decent though. Though if you have any halogen bulbs in the track, they will be much dimmer at the same level.
1548383
I do not notice any delay in these lights coming on, but I am not sure I would notice 1/2 a second delay.
357005
They will turn them on and off, but dimming is not really an option. You do have to read the instructions and set the "local on level" to full on/full off, otherwise they will flicker.
1806162
They are not made to be dimmable. They do dim but then burn out as a result of multiple dimming events.