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HID, High Intensity Discharge is a gas discharge at high temperatures and pressure that leads to high light output. As Xenon is used as main filling gas, this light has also been named xenon light in automotive applications. The discharge process is initiated by a very high voltage pulse and transferred into a continous arcing. The starting process and the control of the arc are handled by a ballast. |
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Nucon Xenon bulb ballasts |
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Full digital ballast developed by Nucon: A micro controler is calculating out of a number of parameters like the lamp voltage, input voltage, PCB temperature, etc. the duty cycles and frequency for the power MOSFETs. The digital device can be connected for remote and diagnosis purposes via a serial bus interface to a personal computer. The ballast is based on planar transformers, they use the PCB itself for the windings granting the same quality by low cost. This ballast has a superior DIMMING RANGE 18-50W !!! |
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Automatic test and calibration, diagnosis and remote control of output power. Tracing by interface of ballasts in the production and field. Configuration of wattage fast or soft start for specific bulb type like DUV35 by software. |
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If you want to design a portable HID search light with the best components available we can help you with the required parts! |
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Automotive discharge lamps |
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Don't be blinded! The DL50 offers only nearly double the light output compared to a D2S 35W, which should not be over powered to maintain lifetime!! |
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DL50 50W longlife bulb version: email for price and delivery conditions |
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The discharge bulb has two electrode wires inside a small elliptical shaped burner volume. An ignition coil generates a flashover between the electrodes to start discharge. The first automotive discharge bulb was the D1. The improved D2S has its burner inside a glas tube for protection. It also has a high voltage connector socket. The U1 bulb was specially edited for an US company with an insulated outer elektrode to reduce the danger of electric shock. The further improved D1S now uses a socket integrated ignition coil for the high voltage pulse generation (The slitted toroidal coil is shown in the x-ray picture on the right). Each discharge bulb requires a ballst of its own, even with the ignition coil being integrated in the socket. Our nucon ballast is directly connected to the D1S bulb. In order to run a D2S bulb an ignitor modul can be put between the ballast and the D2S using a high voltage connector. |
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D2S H4 bulb version with direct connected compact igniter unit. The connection cable between igniter and ballast can be made depending to the customer needs quite long that an easy mounting of the ballast inside the vehicle can be achieved where sufficient space is available. Note: in most countries simple upgrading from halogen to HID is not allowed! |
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21W and 32W HID bulbs ideal for installation in existing small reflectors. The 21W bulb is minimum dimmable down to approx 15W. This bulb has very intresting properties in combination with Nucon ballast like fast flicker free light run up and hot restart capabillity. No outer conductive free touchable electrode important for safety reasons. An ideal bulb for 2 wheel applications like motor cycles or bikes and other portable systems. A smaller Nucon ballast including all safety features will soon be available!!
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21 W type |
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Left: DUV35 UV Philips MPXL non automotive special bulb for UV-light material analyses or other industrial applications like glue hardening etc. For operation of the DUV35 our ballast can be ordered in a new special adopted SUPERSOFTSTART ballast version. |
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Right: RP50/35 MPXL Philips non automotive special bulb for coupling light into fiber optics with elliptical reflektor. Bulb might be also applicalbe for lights on helmets, small torch heads or projection light optics. |
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BS 21W HID reflector style, advantage safety: no naked conductive outer electrode! |
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Left: Brightstar UV bulb. Next bulb is a 24W HID H3 socketed, basically designed for DC bulb current however works fantastic with the new Nucon AC bulb principle which gives more light and more lifetime. Right thereafter you can see two views of the 24W glas reflector type (12° spot) Have a look at a comparisson in between 21W bulb and 24W bulb see also 24W HID bulb halogen comparisson. new hid spotlight comparisson between d1s 35W and 24W brightsstar.
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H 1 |
D1 S/D2S | |
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light generated by | ||
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incandescent filament |
gas discharge | |
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geometrical definition | ||
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boundaries clearly defined |
diffuse boundaries | |
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average luminance | ||
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2000 cd/cm2 |
6000 cd/cm2 | |
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power consumption: | ||
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68 W max. |
Light source |
35 W const. |
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plus nucon ballast |
40,3 W const. | |
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luminous flux | ||
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1550 lm |
3200 lm | |
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lumen efficiency | ||
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25 lm/W |
91 lm/W | |
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colour temperature | ||
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3200 K |
4500 K |
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The luminance distribution shows the higher temperature of the arc. |
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HID spectral power distribution shows little infra red light and is a continuous spectra. (picture taken from Philps catalog 96) |
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NEW spectral data page here |
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Why the luminous flux decreases ?
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HID lifetime depends strongly on switching cycles. Overpowering should be avoided by the ballast. (pictures taken from Philps catalog 96) |
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HID advantages:
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Nucon ballast characteristics:
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normal input voltage range |
9 - 16 V |
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extended input voltage range |
6 - 18 V |
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starting input voltage range |
8.5 - 18 V |
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nominal output power |
34.5 W +- 1 W |
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low output power |
25 W +- 1 W |
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maximum run up power |
75 W |
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maximum run up lamp current |
2.6 A |
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maximum inrush current (@13.5V) |
7 A |
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maximum inrush current (@ low power @13.5V) |
3 A |
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efficiency ballast (@13.5 V) |
90 % |
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efficiency ballast + D1S (@13.5V) |
87% |
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efficiency ballast + D2S (@13.5V) |
89.5% |
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output frequency |
4.5 kHz |
