Starter H7 or H4 bulb
Complex is very the simple and emerges from the need that extended lifetime lasting bulbs H7 on the car Hundayi. Without this complex reserve H7 bulb would last only the 30 day. Complex comprises from two mosfeta which adjusted the maximal current. During the turning on of bulb start current may be and 10 way larger. With this complex this has been limited also the annealin filament does not suffer current strike at switch on.
Complex connects only on short light. Warmth which creates the annealin filament of the short light soon warms up and annealin the filament of the long light also her enlarged the resistance. So throws over on long light happens only than the smaller current blow. Of course, needs will take care of that light comes on always when have been adjusted on briefly (where is the starter device).
Note: for the every bulb need according to the one starter!
power supply: 12 / 24 VDC (for 24V needs will make an exchange 1K5 that 4K7!)
the linear limit current: 5A
own consumption current: 6mA
the opciono protection from the short-circuiting on the bulb (the supplement from the couple of HRK)