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22 octobre 2010

Osram Night Breaker Plus Range

Would you prefer headlight bulbs that produce 35 metres more light on the road than other bulbs? More light on the road means safer night driving. To improve night vision and enhance safety, Osram has developed Night Breaker Plus which produces a light beam that is 35 metres longer than that of an average headlight bulb. This allows increased illumination of dangers and obstacles earlier creating additional time in which to react to avoid the hazard. 

A 10% whiter light compared with standard 24V LED Bulbs is a another key feature of these lamps, making night driving more comfortable and less tiring as well as gold plated spade connectors on the H4 and H7 types for increased connectivity. The Night Breaker Plus is also extremely durable and has a 50% longer lifetime than 1st generation Osram Night Breaker's due to a new filament design and changes in the gas filling.

Osram

Night

Breaker

Plus

Range


Osram Night Breaker Plus is appropriate for the majority of all makes and models of cars and vans where a halogen headlight bulb is fitted as standard. Night Breaker Plus are direct replacements of standard halogen headlight bulbs and are available in other common headlight bulb types, H7, H4, H1, as well as not so common types H3 and H11. There is no need for any modification to your vehicle to replace your standard halogens with these bulbs. As you are replacing your bulbs with identical wattage bulbs, the Night Breaker Plus bulbs are fully Road Legal and comply with all regulations.

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22 octobre 2010

Our range of LED bulbs includes white

LED bulbs use less power, produce whiter light and provide a much longer life than standard bulbs. They are available for sidelights, brake lights, tail bulbs, internal lighting and fog lights.

Our range of LED Car Bulbs includes white, amber (for indicator bulbs) and red (for tail and brake bulbs), as well as coloured LEDs for internal lighting. They are an ideal compliment to upgraded Xenon or HID headlights, and can instantly change the look of the interior of your car or van.

22 octobre 2010

Taxi Cabs and Livery Vehicles

Professional looking Taxi Light Cab Signs from Andys Top Lites & Accessories give your cars the distinctive taxi cab look. No matter how busy the street, prospective fares can see your car coming in time to flag a ride. Compare our quality and sharp look to the competition and you'll be convinced.

22 octobre 2010

This explanation is flawed for more than one reason

This explanation is flawed for more than one reason. Fog droplets are, on

average, smaller than cloud droplets, but they still are huge compared with

the wavelengths of visible light. Thus scattering of such light by fog is

essentially wavelength independent. Unfortunately, many people learn

(without caveats) Rayleigh's scattering law and then assume that it applies

to everything. They did not learn that this law is limited to scatterers

small compared with the wavelength and at wavelengths far from strong

absorption.

The second flaw is that in order to get yellow light in the first place you

need a filter. Note that yellow Fog Lights were in use when the only

available headlights were incandescent lamps. If you place a filter over a

white headlight, you get less transmitted light, and there goes your

increased penetration down the drain.

There are two possible explanations for yellow fog lights. One is that the

first designers of such lights were mislead because they did not understand

the limitations of Rayleigh's scattering law and did not know the size

distribution of fog droplets. The other explanation is that someone deemed

it desirable to make fog lights yellow as a way of signalling to other

drivers that visibility is poor and thus caution is in order.

Designers of headlights have known for a long time that there is no magic

color that gives great penetration. I have an article from the Journal of

Scientific Instruments published in October 1938 (Vol. XV, pp. 317-322).

The article is by J. H. Nelson and is entitled "Optics of headlights". The

penultimate section in this paper is on "fog lamps". Nelson notes that

"there is almost complete agreement among designers of fog lamps, and this

agreement is in most cases extended to the colour of the light to be used.

Although there are still many lamps on the road using yellow light, it

seems to be becoming recognized that there is no filter, which, when placed

in front of a lamp, will improve the penetration power of that lamp."

This was written 61 years ago. Its author uses a few words ("seem",

"becoming recognized") indicating that perhaps at one time lamp designers

thought that yellow lights had greater penetrating power. And it may be

that because of this the first fog lamps were yellow. Once the practice of

making such lamps yellow began it just continued because of custom."

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