Philips LED Lightbulbs coming in July

[sol-leks]

http://i.gizmodo.com/5166759/philipsmaster-led-bulb-enlightened-when-on-or-off

Sounds pretty nice, I feel like this will be of much higher quality than the led lightbulbs around now, and probably have a nice tint and all. Too bad its only 40watt equivalent, not really useful for a whole lot. However, if it uses only 7 watts I wonder how hard it would be for someone to turn one of these into a portable lightsource. Although, I guess if they are calling it 40 watt equivalent they are going to be about as bright as p7's or mc-e's or maybe even a little less bright. I think the big thing here will be what the tint is like. Alot of ppl still believe that all led's are blue purple.

 

[HKJ]

Looking a bit more on the Philips site, there are some data:

Color temperature: 4200 or 3100
Color rendering: 70 or 85
Lumens: 230 or 155

Not very impressive numbers.

 

[Moonshadow]

About $50-$70

 

[iapyx]

Here is more info on this led (from April 2008 !!)
Sorry guys it's in Dutch (probby since Philips is Dutch):

http://www.philips.nl/about/news/press/20080407-philips_nieuwe_master_led_lampen.page

for those who want more info: below you can contact them for more info.
Site is also available in English, but I couldn't find the right info on the so-called Master led.

 

[HKJ]

Site is also available in English, but I couldn't find the right info on the so-called Master led.

In the article linked to at the start of this thread, simply click the word Philips

The Core77 link describes another bulb, with full color control

 

[iapyx]

In the article linked to at the start of this thread, simply click the word Philips

The Core77 link describes another bulb, with full color control

Yes, you are right!

and there I read:
Short payback period
In 18 to 24-hours per day applications, the payback for MASTER LED is less than one year


methinks it's more for commercial apps rather than domestic.
I'm curious though.

 

[Marduke]

Might go better in the proper forum....

 

[blasterman]

In 18 to 24-hours per day applications, the payback for MASTER LED is less than one year

One year of 'what' may I ask? Replacing the dome light in my car? :naughty:

 

[sol-leks]

Looking a bit more on the Philips site, there are some data:

Color temperature: 4200 or 3100
Color rendering: 70 or 85
Lumens: 230 or 155

Not very impressive numbers.

Ewww wow, I def missed that. The color temp doesn't sound too bad but i don't know how they are getting 40 watt equivalent from 230 lumens.

 

[PhotonWrangler]

Wikipedia states that a 40-watt bulb puts out 500 lumens.

 

[richardcpf]

Wikipedia states that a 40-watt bulb puts out 500 lumens.

If Philips is using some kind of inefficient led I don't think it is capable to replace a 40w bulb. They stated the led bulb at 7w. This might be achieved with an MC-E or 2 hard driven R2s.

 

[DM51]

Wrong forum. This is quite plainly nothing to do with LED Flashlights. It is the 2nd thread of yours I've had to move today.

You have been here quite long enough to know where different topics belong. If you continue to disregard forum rules, your posting privileges will be suspended.

 

[holiday light express]

Wikipedia states that a 40-watt bulb puts out 500 lumens.

This is true, but you have to remeber that an LED is directional. A 40 watt bulb is putting out 500 lumens at 360 degrees, and LED bulb is only putting out 160 degrees, so that's how they get away with the claims.
But I wouldn't pay $50 for a 230 lumen bulb, not when the Zetalux is already out for $50 and puts out over 400 lumen.

 

[ponygt65]

Maybe philips is advertising actual Lumens instead of fudged numbers.

I won't start trusting LED's printed numbers until they are put through standardized testing.

I can't believe I just said that about philips..... They are usually the ones that print numbers I dont' believe. LOL

 

[HarryN]

Looking a bit more on the Philips site, there are some data:

Color temperature: 4200 or 3100
Color rendering: 70 or 85
Lumens: 230 or 155

Not very impressive numbers.

From the various links it looks like perhaps it has 2 - 3 Philips rebels in it, which is in line with the 7 watt number.

I am guessing that this is first marketed in EU as they have the most pressure on them to switch from incans to "something else" - for better or worse. Standard light fixtures were designed for incan, and this is hard to overcome.

This just shows how challenging it is to really move LEDs into existing fixtures, even after all of the effort to do so. The "bulb" needs:
- AC - DC - current driver
- 2 LEDs minimum
- 3 D heat spreader
- Diffuser
- Profit for them and the supply chain + retail store
- UL / CE certification
- ISO 9000 and all of the other stuff to keep from being sued

All for around $ 50.

I don't use any bulbs in my house at that lumen level (except for some chandelier flame size bulbs), but just for fun, I will run some numbers using the crazily priced premium tier electricity here in the SF Bay area. ($ 0.40 / KWHr.) and 5 hour per day use.

Comparing this to the more closely matched 25 watt bulb for light output, it would save at best 20 watts.

20 watts x 1 KW /1000 W x 5 hrs/day x 365 days / yr $ 0.40 / KWHr = $ 14.60 - about 4 years to break even if you are unlucky enough to be paying $ 0.40 / KWHr.

For people like my Dad who are paying about $ 0.05 / KWHr, the break even is around 40 years. Since he is already in his 80's, it might not be a good investment. :shrug:

 

[holiday light express]

You have to also factor in replacement cost of the bulbs as well, not just electricity saved. If you are buying 5 CFL bulbs to one LED bulb (which is very generous, in higher trafic areas this number will be higher because of breakage and being heavily "on/off" causes early failure.).. that's $15-20 in replacement costs. So now you are really dealing with a starting price of $30-35 for the LED bulb.

But you are right about checking your rates. If you are paying 0.05/KWHr, it's really hard justifying a LED bulb unless you have the thing on 24-7 or you need an unbreakable bulb.

 

[ponygt65]

You have to also factor in replacement cost of the bulbs as well, not just electricity saved. If you are buying 5 CFL bulbs to one LED bulb (which is very generous, in higher trafic areas this number will be higher because of breakage and being heavily "on/off" causes early failure.).. that's $15-20 in replacement costs. So now you are really dealing with a starting price of $30-35 for the LED bulb.

But you are right about checking your rates. If you are paying 0.05/KWHr, it's really hard justifying a LED bulb unless you have the thing on 24-7 or you need an unbreakable bulb.

Very true. Alot of people over look the cost of lamp change outs.

 

[blasterman]

Standard light fixtures were designed for incan, and this is hard to overcome.

Clap-clap-clap!

This is what I've been ranting about, and a big reason LEDs retrofit bulbs are mostly a marketing solution rather than a practical one.

For instance, I took three Cree P4's (two neutral whites and one ww), and bounced them off a 8" x 24" panel painted matte white and suspended about 5" above the bare emitters. The panel diffused the LED light and reflected a very pleasing cone of light downward. Even at 350mA the light quality was as bright and certainly more pleasing than any 40watt incan, with the exception of maybe a solux halogen.

This is a specific light fixture designed for optimum LED quality, and it looks pretty cool. Putting LEDs inside a opaque plastic bulb so it looks like an incan is frankly stupid in my opinion, but if I may be blunt, so are the people trying to use them to replace incan bulbs.

 

[holiday light express]

You just have to be careful where you use LED bulbs. I have some in lamps that work just fine, but they have white shades that allow the light to bounce around. Any track or spot lighting is perfect for LED's since that is what they do best.
I have replaced a few incandescent bulbs around my house with LED's and they work just fine.. and I'm pretty sure i"m not stupid..
But I can't replace some lights with anything but CFL's because of the fixture design. I'm sure as time goes on they will be developing more fixtures that are LED specific.

 

[Juctuc]

This masterled have been available for 230V few months. It seems to be that now they are making this for US-market...

In my opinion its wrong to compare it to incan. Light is coming different from this masterled. So it not might work in every fixture same way than incan. In the beam there might be same amount of light than 40w incan has, but the beam is smaller. With that kind of calculation, you can compare laser and halogen. You can get same light from the laser than the halogen, but in lots smaller area...