I understand that a "permanent magnet" delivers constantly to much current (in this text it says it's always over 14,4V) and the process of leading current to the ground produces heat (When the regulator regulates). In the "Specs Box" it says that this alternator delivers 13,7V at 900obr/min (rmp:s). Does that mean that it's not actually charging at 900rpm and just keeps some kind of "status quo"? Answer: I understand it the same way. It also says that it will give 14,2V at 100W... Is the 100W the watts the capacity of the alternator or the watts that consumes by all the things on the bike? It sounds like if the watts go up it will get a different voltage, but the voltage should be the same since the regulator-rectifier regulates that... Right? Don't really understand... Answer: You will have access to 100W at 2300rpm but if you need 120W at 2300rpm it will have to get help from the battery. The regulator-rectifier take care of the voltage. The power you can use will increase with rising rpm until you reach the generators nominal power output. There are some words that couldn't be translated, "domasowo" and "domasowe". Are those suppose to be "ground" and "grounding"? Answer: I really dont know but google translated a word to ground in the last part of the text so I assume that the other words means something else. "Driving with headlights off will not damage the unit or voltage regulator, but it is definitely detrimental to the system that produces energy and it does not use the load acting on the engine". Does this mean it's just "meaningless production of electricity"? When I try to translate I get: harmful, damaging, injurious, hurtful, inimical, deleterious, dangerous, destructive, ruinous, calamitous, disastrous, pernicious...!!! Answer: The power you dont use goes to ground via the regulator-rectifier and if you have a powerfull generator and dont use the power it goes through the regulator-rectifier and creat heat which might be bad. The last part I understand as If it's to much "overproduction" the charging light will be on at high speed and even if the battery is being charged... Why? Could this be an explanation to why the charging light is constantly glowing for some people? Answer: See the last sentence in my answer above. In high rpms there will be more power not in use which goes to ground and therefor the lamp glow. I cant answer you on the other half of this question. "To the problem disappeared, the device must be ordered according to his power that is at the limit of 100 - 120W." This I don't get... Hope someone can explain. Is it about ordering a alternator with the "right watts" or is it some kind of maximum usage... I don't understand. Answer: They must mean that you should order a generator which have a capacity just above your total need. Have you considered to choose a modern alternator instead? http://www.oldtimergarage.eu/catalog/product_info.php?cPath=26_35&products_id=4214 I think this modern solution is a better choice. The loading is regulating by switching the electromagnet on and off and this avoid overheated regualtor and you will not have a glowing charging bulb when you rev your engine.