The Altima doesn't have projectors, it just has "ordinary" HID lights. The HID lights have an arc inside a bulb filled with xenon, so they are sometimes called "Xenon lights". They have to have additionaly electronic parts, including a ballast, to generate high voltage for the arc- that's why they cost more. SFO said: thanks for input folks. good to hear that Xenons adaptive lights are similar in functionality to LED adaptive lights. on M3/M4, the difference is £1240 which is a lot. Totally dependent There are no "non-adaptive" xenon lights on the F10. So the answer to the OP is "yes", he will have adaptive xenons. This means the additional cornering lights (inner beams), as well as the swiveling headlights themselves, reacting to steering inputs. This has nothing to do with beam spread control. BMW-CCA. In this video we talk about what it takes to swap add xenon lights to your vehicle with halogen headlights. This retrofit can often be confusing and adding Xenon bulbs consume more energy than LED flashlights. Due to low energy consumption, LED flashlights use less battery power, and the battery can run for a longer period. For outdoor ventures, and trips LED flashlights are better than Xenon lights. Light Quality. In comparing Xenon VS LED Flashlight, light quality xenon may be a preferred choice I agree, the LED headlight technology is still very new. The current LED headlights are not that much more power efficient than the xenon. Does anyone know what the BMW LED headlight's wattage is, my guess is that its not much lower than 35 watts. As far as brightness, LED headlights produce about 100 lumens per watt while xenon produce about The primary use of xenon is in lamps. When an electric current is passed through a gas, it can give off light. Fluorescent lamps and "neon" lights are examples of this process. The kind and color of light given off depend on the gas used in the lamp. Xenon is used when a very bright, sun-like light is needed. Xenon bulbs can last up to 10 years, making for good piece of mind.• Brightness. As high intensity discharge would suggest, xenon lights are brighter than there halogen counterparts. In summary it is not permitted to convert an existing halogen headlamp unit for use with HID bulbs. The entire headlamp unit must be replaced with one designed and approved for use with HID bulbs and it must be installed in accordance with the [omitted in this post] rules stated above." Nine naturally occurring isotopes of xenon exist. They are xenon-124, xenon-126, xenon-128, xenon-129, xenon-130, xenon-131, xenon-132, xenon-134, and xenon-136. Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number written to the right of the element's name is the mass number Vwh7.