Review: Waveform Lighting A19 Centric Home/Daylight E27 bulbs (2700K, 4000K, 5000K)

Nice pictures and beam shots, thanks for the review! :+1:

Beam shots? I didn’t notice any of those…

… oh, wait. There it is. It took me a moment, but I found it. The beam shot is just under “Measurements”, to the right of the table. It’s really easy to miss if you don’t look very closely, so I highlighted it:

Got my 2700K Waveform A19 bulb, and I am very pleased. My example is closer to 2800K, but a much better match for incandescent then my Philips A19 LED. Will probably be replacing the CFLs in my place with them.

I also got the 2400K filament light from them, but it exhibits some odd behavior. It flickers on startup, but then it seems to smooth out a perciptable amount once running for about half a minute. Do you guys have any idea what this could be?

A day late for a Halloween resurrection… but this was funny. Couldn’t go without giving Kudos :smiley:

Hope to see these easily available, it’s hard to find high CRI home lighting and it’s certainly still at a huge premium.

I’m waiting for some from V-tac to arrive that claim >95 so fingers crossed they are decent. Only 10w but cheap for what they claim to be.

Wow, those lights get HOT !
80°C, 100°C :frowning:
But no wonder when the only exposed metal is the E27 socket…

Bit of an update with my 2400K Waveform A19. I just screwed in a new duplicate lamp, and it appears that after about a year and half this light now has some serious lumen depreciation. I want to say, generously, that this lamp probably has around 3000 hours on it. The rated L70, 70% of initial output end of life, is officially rated for 25,000 hours. It looks like I have a warranty to claim.

I assume that a 30% drop would not even be noticeable. Is it so bad that it is noticeable? Or did you measure it?

I have many Lux24 bulbs that I use a lot, and I also have a few unused ones. Maybe I should measure them.

I have a similar warranty too. did about the same!.

I just measured two of my 2400K A19’s. I used my Extech lux-meter held vertically facing the lamps at 12 inches away. The depreciated lamp measured around 230 lux while the newer light measured 560 lux. The drop in output is noticeable.

40% from initial output, 60% is lost, for 3000 hrs.
Normal for one-dollar lamps, but A19’s cost much more.

I suspect this lamp won’t even make it to 10,000 hours, and I used it in an open fixture where heat shouldn’t have been a problem. I wanted to mention, even an L70 is a somewhat poor rating. An L70 means you loose nearly 1/3 the light’s output before it gets replaced. Metal halide had comparably poor lumen maintenance, but it didn’t last as long as LED before it had to be re-lamped. T8 fluorescent was actually a lot better then LED in this regards. It has a 90–95 lumen maintenance over its long lifespan. It’s possible to intelligently design LED fixtures that compensate for lumen depreciation by having the driver gradually push more power to the chips as they age and degrade, but most consumer lights don’t do this.

2000h and will go to trash? :frowning:

for 18$ ?

RIRERA9 will humiliate it

:smiling_imp: :zipper_mouth_face:

Waveform Lighting got back to me fairly promptly. I wanted to mention this earlier. They sent me a replacement lamp at no cost to me. They also had me send back the defective lamp at no cost to me. The warranty and manufacturer saved me on this one.

Hi!
I wanted to buy the waveform Lightning light bulbs because I am very sensitive to flickering and light quality, and any artificial light really generate me dizziness! So i tried to buy from them, but shipping and taxes costs are tooo high.
Since I am in europe, is there any other company that produce the same type of product as waveform lightning?

You’ll have to buy the LED-Lamps from Philips and try them.

Buying 5-10 different LED-Lamps and finding out about their flickering can cost more than just spend $64.41 on shipping from waveform.

Thanks you so much for that website is so useful!
I wanted something with thoose requisite:

- E27/E14

- CRI 95+

- Flicker (No flicker or up 50khz DC Inverter)

  • 2700k - 4000k light bulbs

I saw there are the GU10 Philips Master Color LED, which have a very high CRI and right color temperature. Do you know the frequency of flicker, and If it would be better to swap the E27 adapter to a GU10?

I don’t know the frequenzy of flickr of the Philips MasterLED. But since the Master Series targets the professional market, chances for reduced flicker are good.

The austrian company of Ledon did produce some flickr-free lamps in the past.

So i suggest you’ll have to try the Philips or Osram lamps.

Hello,

I am a new user and it seems your forums are very helpful for people to select a good light (s).

Would you please suggest if there were any updates? I am looking for the light that closely approximates the sun colors during the day because I live in a relatively dark area of the Country, Pacific NW, it is rainier and cloudier.

Thank you.

Not everyone will agree, but IMO if you’re using this for day time lighting, you should get something at least 5000K and probably just go 6500K especially if you have a good amount of lighting/brightness/lux. I haven’t looked into this area in a few years, but Waveform Lighting seems to be one of the only manufacturers who do 6500K with a high CRI. This wasn’t reviewed here, but their other lights seem decent so I suspect their 6500K is too. If you don’t want to go so high, Yuji also does 5000K although my understanding is the Waveform 5000K is better anyway. Don’t know about their past warranty issues, no recent reports makes me thing maybe it’s not such a problem any more and to be fair only 2 users reported it.