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#4568471 - 11/09/17 04:04 AM Osram Night Breaker Unlimited lifespan
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
I wonder what is the life span of Osram Night Breaker Unlimited bulbs. How many hours? And how many hours is the lifespan of standard halogen bulbs.

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#4568487 - 11/09/17 05:37 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
kr_bitog Offline


Registered: 10/06/07
Posts: 878
Loc: South East Asia
If I am not mistaken, those bright bulbs lasts around 300hrs. Normal halogen bulbs perhaps around 450hrs. The one impressed me before on Philips bright bulbs, they always die within hrs of each other.

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#4568618 - 11/09/17 08:53 AM Re: Osram Night Breaker Unlimited lifespan [Re: kr_bitog]
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
@kr_bitog

You're probably right! I found this test:
http://teknikensvarld.se/vart-test-avslojar-vilka-lampor-som-ger-bast-ljus-pa-bilen-181624/
which measures the life span of 3 different high performance halogen bulbs (made of 3 different manufacturers) range from 303 to 365 hours. In the same test a longlife bulb was included and according to the test it lasted for 1100 hours!

Unfortunately, I can't find a test measuring the lifespan of typical OE halogen bulbs, or at least the lifespan given for them by their manufacturers. If the lifespan of a normal bulb is around 450 hours as you stated (I don't know if you have any sources to share), then I would consider the lifespan of performance bulbs satisfying and I would buy and install them, but if a typical bulb has a lifespan of 600-800 hours, in that I'm not sure I would buy performance bulbs, as the difference would seem big to me.

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#4568635 - 11/09/17 09:01 AM Re: Osram Night Breaker Unlimited lifespan [Re: kr_bitog]
Colt45ws Offline


Registered: 08/15/06
Posts: 9612
Loc: Central Washington
Originally Posted By: kr_bitog
If I am not mistaken, those bright bulbs lasts around 300hrs. Normal halogen bulbs perhaps around 450hrs. The one impressed me before on Philips bright bulbs, they always die within hrs of each other.
I noticed the same with my Philips XtremeVision bulbs. I had one blow, so I put a spare in it and a day later the other one blew.
Excellent manufacturing consistency I guess.
I only expect to get about a year from those XVs. I have to buy a set every December like clockwork. I like the extra brightness to much to go back to regular bulbs though.


Edited by Colt45ws (11/09/17 09:03 AM)
_________________________
-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2

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#4568640 - 11/09/17 09:08 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
Andy636 Offline


Registered: 12/30/10
Posts: 774
Loc: Romania
They are great bulbs. I've been using them on my car for about 3 years.
Not one made it past the 6 month mark so far. If you can handle the price and are easy to swap in your car without taking out the battery, fender elements, curs like a drunken sailor and sacrificing some finger/hand skin to the automotive gods...then GO FOR IT !!!!!

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#4568644 - 11/09/17 09:11 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
Johnny2Bad Offline


Registered: 05/20/13
Posts: 1631
Loc: Saskatchewan, Canada
The brighter the bulb, the shorter the life. Just plain physics ... the added heat, which is inevitable, takes it's toll. A compromise no matter which way you go.
_________________________
'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]

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#4568656 - 11/09/17 09:18 AM Re: Osram Night Breaker Unlimited lifespan [Re: Johnny2Bad]
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
Originally Posted By: Johnny2Bad
The brighter the bulb, the shorter the life. Just plain physics ... the added heat, which is inevitable, takes it's toll. A compromise no matter which way you go.


The question is how much shorter? If it's 20%-30% I would find it acceptable. If it's 50% or more I would be in two minds installing a high performance bulb.

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#4569412 - 11/10/17 01:22 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
kr_bitog Offline


Registered: 10/06/07
Posts: 878
Loc: South East Asia
Seems nowadays halogen bulb has better quality, i stand corrected typical bulb will last up to 750hrs. New longlife one will last up to 3000 hrs where manufacturer claims no replacement needed for 100k kms.
philips

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#4569419 - 11/10/17 02:12 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
Carmudgeon Offline


Registered: 04/26/05
Posts: 487
Loc: Under the hood
The original NB had a reputation for poor life.

They then updated it to the NB Plus, then the Unlimited, and now the Laser.

The data sheets can be found on Osram's site.

Remember that the B3 figure is the minimum period that 97% are expected to last.

The Tc figure is the period when 63% of the bulbs are expected to have failed.

Both using 13.2v test voltage. A higher voltage will reduce life span.

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#4569485 - 11/10/17 06:22 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
@Carmudgeon

Thanks for pointing that out.

So Osram Original Line has a B3 lifespan of 400 h and a TC lifespan of 650 h.
https://www.osram.com/appsinfo/pdc/pdf.d...;mpid=ZMP_61208

The Osram Night Breaker Unlimited has a B3 lifespan of 150 h and a TC lifespan of 300 h.
https://www.osram.com/appsinfo/pdc/pdf.d...;mpid=ZMP_61208

The Osram Ultra Life has a B3 lifespan of 1200 h and a Tc lifespan of 2000 h.
https://www.osram.com/appsinfo/pdc/pdf.d...pid=ZMP_1013616

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#4569805 - 11/10/17 11:22 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
jeff78 Offline


Registered: 06/06/17
Posts: 118
Loc: New York
I haven't used the Nightbreaker Unlimited in particular, but have used a number of similar premium '+100/130' type bulbs and I tend to get anywhere from 175-200 hours of use out of them. This is on a motorcycle where the low beam is required to be on at all times so I go through bulbs pretty quickly. I get ~13.8V at the headlight socket using a dedicated relayed headlight harness.

As Carmudgeon mentioned, higher voltages reduce life expectancy (and light output). The opposite is also true, so those 'long life' bulbs give you longer life but they do so with reduced light output (at the lower end of legal).*

Other things to consider are ease of replacement and whether the bulbs in your car are being run at a lower voltage as a DRL.


* - Also bear in mind that light output reduces as the bulb ages, so a long life bulb is more likely to give you significantly reduced output over its lifetime than a premium high output bulb which will tend to burn out before light output drops significantly. You probably won't even notice the loss in output because it's gradual, until you finally replace the long life bulb.

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#4570494 - 11/11/17 05:03 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
I was looking at Philips WhiteVision bulbs.
They have a temperature of 3700K and they claim a +60% range improvement compared to standard halogen bulbs.

https://www.philips.co.uk/c-p/9005WHVB1/whitevision-car-headlight-bulb/specifications

They also state "Lifetime 400h". Can anyone say if this is a B3 or a Tc lifespan?

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#4571430 - 11/12/17 02:39 AM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
Carmudgeon Offline


Registered: 04/26/05
Posts: 487
Loc: Under the hood
If you're looking for performance and not looks, skip the Philips and go straight to a modified 9011 HIR1 bulb, which is rated for ~2500 lm and ~1400h.

Any bulb with a tinted envelope encompassing the filament and marketed using color temperature as a prominent feature is for the birds.

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#4571446 - 11/12/17 04:16 AM Re: Osram Night Breaker Unlimited lifespan [Re: Carmudgeon]
inquirer Offline


Registered: 02/10/15
Posts: 73
Loc: Greece
Originally Posted By: Carmudgeon
If you're looking for performance and not looks, skip the Philips and go straight to a modified 9011 HIR1 bulb, which is rated for ~2500 lm and ~1400h.

Any bulb with a tinted envelope encompassing the filament and marketed using color temperature as a prominent feature is for the birds.


I am looking 100% for performance. I think color temperature could be counted as part of the performance equation. I have read that the best temp for the human eye is 4800K. At extreme values of temperature probably the drop in performance would be easily perceived by the driver, but of course temp is not that important as brightness, when temp values are average.

My car uses HB3 (9005) and HB4 (9006) bulbs. Are the 9011 HIR1 compatible? And are they road legal without any other modification needed?

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#4572252 - 11/12/17 08:24 PM Re: Osram Night Breaker Unlimited lifespan [Re: inquirer]
Colt45ws Offline


Registered: 08/15/06
Posts: 9612
Loc: Central Washington
The base where it fits into the headlamp housing needs one minor modification, but otherwise is a direct fit.
I believe the 9012 are the replacement for the 9006 and same thing, minor modification to the base.


Edited by Colt45ws (11/12/17 08:25 PM)
_________________________
-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2

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