Get more car news, video, pictures and exclusive content on our Facebook page. Don’t be tempted to save cash on unbranded alternatives. For top D3S performance it has to be the Philips, and Ring is our standard choice. There are no bad H4 bulbs here, but the RacingVision is our choice. The Figure of Merit for HID is close to double that of the halogen, with a beam that’s 30 or so metres longer. Running both tests at the same time, although in different headlamps, gave us a chance to see just how big an advance HID was over halogen when it was introduced over 20 years ago. It came as no surprise that both samples failed to reach the minimum light levels by a significant margin. It finished last in all our tests and delivered just 16 per cent of the area above 30 lux compared with our winner – easily visible to the naked eye. This is an Amazon best seller in faux-Osram packaging, but even at this super-low price, it’s too costly. When some producers’ prices top £160, it’s tempting to save some cash by going for an unbranded alternative. The prices quoted are for a pair of bulbs. A 35W kits worst case startup current draw is 8 amps, and 4 amps at steady state, and can. A 55W HID kit draws much more than that at startup, and over time will damage the lighting circuits electrical connectors. We also checked light output to ensure that the samples complied with ECE regulations. The amount of light produced by a 35W Xenon bulb is much higher than a 55W halogen bulb. Our figure of merit (FOM) was also calculated using levels at 50 metres in front of the car on the kerb and in the centre of the road, plus twice the hard-to-reach 75-metre roadside mark. We measured the area of the beam at more than 30 lux, beam reach above three lux, plus the brightest spot. The tests were the same for both types, despite the different light sources: filament for the halogen and an arc between electrodes for HID. It’s an unusual, if not unique, set-up, but the results have been corroborated by tests at parent company Osram’s conventional light tunnel in Germany, which we have used in the past. Software then measures the light at various points in the beam. Good luck, keep us posted on your efforts as well.Bulbs are placed in a headlamp - a reflector type from a Fiat 500X for halogen bulbs, projector from an Audi A3 for HID - allowed to burn in to settle output, then an image is taken of the beam pattern on the wall. anyone need a place to stay when they ski in Utah? (Ill share that on another thread. right now Im moving and fixing up my cabin in Park City to accomodate vacation renters. I think the heat will be no problem, non HID touaregs have 55W halogens and 65W halogens in the same housing and halogens are less efficient. This fools the car into thinking everything is stock and retains the autolevel beam adjustment. install 3000K H11 HID bulbs in the fog housings and ignite them with the OEM BALLAST inside the headlight housing (long HV cables). this ballast ignites the D2S bulb in the headlight.ģ. Similarly, if you want to replace your 53W halogen light bulb with a modern LED, the LED will probably use. parallel the 12V power circuit for the oem ballast to drive an aftermarket 55W ballast through a relay straight from the battery. Using the chart we can see that if you want to replace a 40W incandescent light bulb with a compact fluorescent (CFL), you will likely need a 7W CFL. convert the oem D1S bulbs to D2S with a pigtail adapterĢ. My plan for the Touareg is a little more complex and will require me to make some custom high voltage cables. I have them on my pickup and they are very nice (and robust) I havent done this mod yet on my Touareg.
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