HID enables safer nighttime driving than LED or halogen

Comparisson

*H I D*	*L E D*
`High intensive luminous flux out of a single light source`	`Lights must be clustered for headlights`
`Very high light flux density`
`Very high luminous efficiency 90 lm/W`	`30-40 lm/W`
`Efficiency increases with bulb temperature`	`Efficiency decreases with LED temperature`
`Stray light in classic reflector design is possible and improves visibility from the side by others`	`Only projection system usable`
`Very long life time depending on cycle mode and ballast`	`Even longer life time but only if not overheated or dimmed`
`Requires ballast control gear`	`LED requires control of temperature and current limitation`
`Ballast can be separated from bulb`	`Cooling provision must directly be installed at LED`
`Spectrum starts at the UVA blue edge and can therefore use fluorescence effects of road signs`	`Spectrum starts only beyond UVA blue at visible blue and cannot do this`
`HID spectrum has very high color output at maximum sensitivity for standard eye response at daytime AND nighttime`	`LED spectrum has minimum color output at maximum sensitivity for standard eye response at nighttime`
`Standardized geometry of bulb`	`No standardized geometry therefore no retrofitting`
`Standardized geometry of socket`	`No such thing is existing no retrofitting`
`Bulbs available at moderate price`	`Very expensive`

Unfortunately major bulb manufacturers did not improve the light output performance of automotive HID bulbs since 15 years And bulbs free from mercury do not reach EU HID requirements because of reduced light output when starting a cold bulb. Nucon GbR however is able to offer even an improvement by using miniature short arc lamps, driven at very hi frequency! The advantages are: much higher lum efficiency beyond 100 lm/W further increased lumen density achieved by new miniature xenon arc capsules, developed by Chinese bulb manufacturers. To match the long life of LED , HID must be driven by negative bulb voltage and hi frequency, and shall be started without DC phase. Nucon GbR can definitely do that! Nucon GbR ballasts with their pure hi frequency run up even improove the performance of the new mercury free bulbs Nucon GbR improves ballast technology in respect of safety and general performance without rising costs., quite on the contrary, we were also able to reduce costs. Thus for new technology developed solar powered lighting: HID is the best choice against LED and others.

Standard eye response curve daytime nighttime

White LED spectral distribution has a minium of color output for night vision.

HID has peak values and grants good vision at day and night!!

HID has usefull spektral data for UVA headlights from 350 to 400 nm

Ultraviolet light has a shorter wavelenght and is invisible to the human eye. When the UV light is scattered by materials the wavelenghts are converted to longer visible wavelenght. The so called fluorescence offers enourmous potential for improving safety for road safety. UV light can improve the visibility without dazzling oncoming traffic. Like already today most road signs, roadside posts have fluorescent special pigments. Many materials used in everyday clothing are naturally fluorescent and by the whitener of detergents the phenomen is further increased. The remaining UVA light intensity of the HID headlights is very low compared to daylight. However the UVA of HID headlights is helping especially for the highbeam to see beyond the borders of LED or halogen, which most drivers of Xenon equipped cars won't miss anymore although they don't know the physical background of nature of light!