D1S D2S lamp current curve

The lamp's current curve has major influence on the electro-magnetical interference radiation of the xenon HID bulb and its ballast. Therefore the current curve of the nucon ballast was designed with not too fast current slope rates. But nevertheless the slope rate is fast enough to avoid a flash out of the arc at zero crossing. The reignition of the arc bow leads to heavy interference radiation over all radio bands. Because of the special wave form there is a state of the art US patented dimming range achieved !!

As it is shown in the scope picture a classical D1S 35W lamp is powered just with amazing low 17W which corresponds to a lamp current about half of the nominal current. By this dimming feature a Nucon ballast can grant a law conform car retrofit below the known 2000 lumen limit! The 2000 lumen limit is the edge from there it is required to have an automatic headlight washing and leveling system, which is expensive and can not been retrofitted at required quqlity level of performance. Competitors ballast usually support just 28W as dimming, if this is a dimming at all??