Philips X-treme Power Headlamp - 80% more light

[gurpz]

Does anyone know the K rating of these bulbs by the look of the review they sound impressive

 

[Dieselman]

I don't think so because they have the same power consumption so therefore the same amount of energy given off.

As far as I am aware it's done by using a thinner but shorter tungsten wire, so they glow brighter white.
But then if they glow brighter does that mean more heat is given off..?? Hmm..

The gas in the capsule then retards oxidizing to some degree. This is how all inert gas lamps work.

 

[BTB 500]

Yes they do as you cant have one thing without the other

Hang on ... if the input power is the same as a normal bulb (which it is - 55W), and it emits more energy as light (which it does), then it must produce less heat energy.

 

[Dieselman]

Yes they do as you cant have one thing without the other

I think you are correct television. But they have the same nominal input power..that has thrown me a bit as the efficiency appears to be better (more light), so where does the additional heat come from..?

 

[television]

I think you are correct television. But they have the same nominal input power..that has thrown me a bit as the efficiency appears to be better (more light), so where does the additional heat come from..?

I thought about this after I posted and before you posted, though not proportional the has to be a little more heat, the wattage figure quoted is that of the filament, light generates heat, so can we settle on a little more heat

 

[Geezer]

If someone gets some can you give them a quick review?

I have used 50%+ for years even have them on my main beam in the E Class along side the Xenons. It would be interesting to see what 80%+ do.

I have some on order - watch this space!

 

[Goldfish11]

From what I understand Xenon Gas has some form of cooling effect, in comparison to Halogen. Therefore bulbs can burn brighter with less heat and oxidation, hence brighter light.

Look forward to seeing what you think.

 

[MBManInKen]

Hang on ... if the input power is the same as a normal bulb (which it is - 55W), and it emits more energy as light (which it does), then it must produce less heat energy.

You cannae change the laws of physics .

These bulbs do not produce more radiation, they just radiate in a slightly different part of the spectrum, which make it appear as they are "brighter".

http://www.danielsternlighting.com/tech/bulbs/superwhite/superwhite.html

 

[BTB 500]

You cannae change the laws of physics .

These bulbs do not produce more radiation, they just radiate in a slightly different part of the spectrum, which make it appear as they are "brighter".

http://www.danielsternlighting.com/tech/bulbs/superwhite/superwhite.html

Think we might be saying the same thing?! Less infra-red radiation (invisible, 'heat') ... more visible radiation (light) ... same input power.

Hence although providing more light, they don't run hotter.

 

[television]

The best way to solve this is to try one of each and put it in a box and measure the temperature of the box say after ½ hour, then we will all see the light

 

[Geezer]

The best way to solve this is to try one of each and put it in a box and measure the temperature of the box say after ½ hour, then we will all see the light

And then recharge your flat battery!!

 

[television]

And then recharge your flat battery!!

I forgot that we all do not have external power supplies

 

[glojo]

but with DRL switched on

I'm having a bad day and the brain aint firing on all four? Is DRL driving lights?

Thanks.

Monitoring this post with interest for number one son, but if the lamps burn out quicker, then we won't be interested.

Thanks for an interesting topic,
Regards
John

 

[Shude]

I'm having a bad day and the brain aint firing on all four? Is DRL driving lights?

"daytime running lights" perhaps?

 

[MBManInKen]

Think we might be saying the same thing?! Less infra-red radiation (invisible, 'heat') ... more visible radiation (light) ... same input power.

Hence although providing more light, they don't run hotter.

Yes, sorry, I was not disagreeing - just trying to explain the issue in a different way .

 

[timskemp]

I wonder who makes those bulbs, you can guarantee it's not Volvo..

Osram last time I bought them. But in a volvo box! Cheaper than the philips longlifes from powerbulbs.

 

[Goldfish11]

I have been using 50%+ Xenon lights for 4 years in my E Class. I use daytime running when the clocks change in the winter as light levels get poor then, in my opionion they should make it law for the winter (I am sure that statement will create some debate) I used to work on an oil refinery that was plagued with minor road accidents and pedestrians getting hit on site. They introduced the rule that all vehicles on site needed to drive with dipped headlights and the RTA's stopped.

Anyway back to my point, my run to work and back is 45minutes to 50 minutes each way. The bulbs (Osram 50%+) are 4 years old and for 6 months they are on all the time. They may last less time but if I can get 4 years instead of 5 who cares.

Or have I just been lucky ?

 

[television]

Or have I just been lucky ?

I saw a post the other day where this lady had a light bulb in the house that failed after 45 years that was an Osram

 

[crockers]

I saw a post the other day where this lady had a light bulb in the house that failed after 45 years that was an Osram

45 years ...that all? I'm switching back to Phillips then....

 

[glojo]

I saw a post the other day where this lady had a light bulb in the house that failed after 45 years that was an Osram

Yup,
First time she switched it on the blooming thing blew

Sorry about that but I wonder if it was indeed in the spare bedroom.

John