HID startup II

Starting and warmup of a Philips 35 watt D2R Automotive Xenon-Metal Halide HID lamp with the reflector removed. This type of lamp is commonly used for headlights in luxury vehicles such as Mercedes, BMW, or Lexus. Automotive Metal Halide lamps are commonly called "xenon lamps" due to the presence of xenon gas used to fill the arc tube. The xenon gas allows these lamps to provide a minimally adequate amount of light upon startup. If this lamp was filled with argon instead as is commonly done in street lamps or other stationary HID lamps; it would take several minutes for it to reach full brightness vs 30 seconds.

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Headlight Comparison : Laser v LED v HID Xenon v Halogen
It wasn’t that long ago that headlights were a no-thought-required feature. All cars had them and no one really paid them much heed unless they failed or were shaped in a particularly ugly manner. Halogen Reliably generating light with the limited resources at a car’s disposal was a problem for early automotive engineers. Tungsten filaments, similar to the kind found in household incandescent light bulbs, were finally settled on as the solution. From the mid-1960s until now these tungsten filaments have been encased in a bubble of halogen gas in order to improve performance and longevity. For much of their history, tungsten and halogen lamps focused light on the road via a lens that doubled as the headlight’s protective housing; now the two jobs are separate. High intensity discharge In high intensity discharge (HID) headlights, such as those used across the Lexus IS range, a mixture of rare metals and gases are heated to produce a bright white glow. HIDs are around two to three times brighter than halogen lamps and their glare can be particularly annoying for other road users. As such, the Australian Design Rules require cars equipped with HIDs to also have a self-levelling mechanism and a headlight washer. The former ensures that the headlights are always aimed towards the ground. The latter minimises the build up of dirt and grime, both of which can divert more light into the eyes of on-coming drivers. Despite their brighter output, HID lamps require less power to operate. They generally draw about 35 watts and are said to be good for around 2000 hours of use. LED Light emitting diodes (LEDs) have come a long way from the simple flashing lights on beige computer cases to being key components in modern cars, phones and televisions. Whether you realise it or not, they provide most of the lighting used in today’s instrument panels, entertainment head units and car interiors. As well, arrays of these diodes are employed in fog lamps, indicators and brake lights. Car designers love LEDs because their small size allows them to be fashioned into ever thinner and more distinctive shapes. Although LED headlights currently fall a little short of the brightness achieved by HIDs, they hit maximum brightness within a millionth of a second compared with the half second required by incandescent and halogen lights. Laser In the Audi R8 LMX, laser beam is used only as a supplement to the existing LED headlights, activating only when automatic high-beam is being used with the aim to double the range of light compared with LED high-beam – to a full 500 metres. So, how does it work? Where many light-emitting diodes (LED) are used within a regular headlight assembly, lasers work in a different fashion. In the R8 LMX there are only four laser diodes each with a diameter of 300 micrometres, or just 0.3 millimeters – talk about tiny! They are wrapped tightly in what Audi calls a “radiation-tight aluminium module.” Rather than pointing out towards the road like a normal beam, however, they instead are directed in a V-shape to a single point on a mirror, each strand of laser producing a wavelength of 450 nanometers. ------------------------------------------------------------- http://CarAdvice.com.au is focused on getting people into the right car for them. We understand the different needs buyers face when making the decision to purchase a car, and our comprehensive reviews aim to help you make the right decision. Our videos and articles are created by expert and unbiased journalists who are passionate about their work. We welcome the opportunity to answer your questions and encourage discussion. Don’t hesitate to ask us a question about a car and we will try to guide you to the right car for you. Subscribe to CarAdvice for the latest reviews, road tests, comparisons, news and opinions in the automotive world. SUBSCRIBE HERE http://youtube.com/subscription_center?add_user=CarAdvice CONNECT WITH US — https://facebook.com/CarAdvice — https://twitter.com/car_advice — https://plus.google.com/+caradvice





Some HID lamps with Na lamp ballast and ignitor
70W Na ballast, ignitor. 230V main. lamps tested: 150W HID from LCD projector, 250W HID short arc Hg lamp, 250W long arc UV-C lamp.





400W HQI (METAL HALIDE) LAMP - START UP (using plasma ball)
Lamp is 115V / 4A / 400W / 34000 - 35000 lumens. The tube inside is made of fused quartz and the outer UV and heat protection glass is borosillicate. Temperature on the outer tube is up to 500°C so it's really unsafe to touch it while it's operating. Thanks for watching, please rate, comment and subscribe :D





How to retrofit Toyota Matrix headlghts with xenon HID LS460 projectors
Here is a DIY video of Toyota Matrix headlights retrofitted with high end Lexus LS460 xenon projectors.




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