I hope you will tell me a cheap web site where I cvan buy them.
Ok here it is.
Trustfire x1-32.00 USD
Trustfire Flames 18650 2400 mah-9.25
Intellicharge i4 V2-26.5
Sipik sk68-8.99
All of these have free shipping so the total would be 76.74 USD(60.30 Euros) with batteries, a charger, a small light, and a thrower.
Do you know a web site selling Shadow TC500 or Crelant 7G5 have free shipping? Trustfire x1 has the same strong throw than TC500 or Crelant 7G?
Not off the top of my head but I will look around.
Does Trustfire x1 have the same strong throw than TC500 or Crelant 7G?
Here.
Shadow-60
http://www.intl-outdoor.com/shadow-tc500-xml-u2-800lumens-218650-flashlight-p-421.html
Crelant-78
http://www.intl-outdoor.com/crelant-7g5-xml-u2-3-mode-860-lm-flashlight-p-217.html
Note the crelant is currently sold out.
mmmmm, but they are 850-900 lumens only. mmm, I like them less now. 
I need and to light up the forest also, beside getting a strong throw.
Aloha and welcome to BLF FoxAdriano!
All of these are going to be about the same brightness since the trustfire is over-rated. They all use the same led and they all drive it fairly well.
Aloha fishinfool
Now I use a Streamlight TL-3. Do you know if it has a stronger or weaker throw than Shadow-60 or Crelant-78?
Yes, any of these lights should be more powerful than your streamlight TL-3
It uses CR123A lithium batteriesand I'm thinking to buy another flashlight using the same batteries. So that they are interchangeable. Do you know a good flashligt using the same batteries? I'm thinking: if it is dissicult to find a better and strong throw than my Streamlight TL-3, I'm thinking to buy a flashlight with completly differrent specifications, that is a very large throw. Do I make a mistaken?
Do you mean both have a stronger throw than my streamlight TL-3, even if it has a xenon bulb? Are you sure?
Yes, much brighter and stronger throw.
Lumens does not = beam extension/throw.
Lux = beam extension/throw
More lumens does not = More lux
Some quick rules of thumb, more LEDs can mean more lumens, but will mean less lux than 1 LED with the same current as the other 3 combined.
1 LED XM-L lights are the best throwers under $100 available. 3x XM-L will be around twice the brightness (some of them, some may be less bright even, you'd have to do research), but will have less throw/beam extension.
Any of the lights so far mentioned (apart from the small sipik) will be much brighter than your xenon streamlight.
I recommend you look at the fandyfire stl-v6 from dx. Also get some xtar 2600mah cells and an xtar wp2 II charger. Or the package deal on ebay of 4x xtar 3100 cells and an intellicharger.
I will think about your writings. They are very interesting. Do you know a cheap web site selling stl-v6 or xtar? It is hard to find it. Thanks
Yeah dx = dealextreme, the link to it is in the post below mine actually.
Xtar are available direct through this forum at a very good discounted price, or the intellicharger + 4x 3100s is on ebay HERE
It is a wonderful flashlight, aesthetically wonderful too. In you opinion is it better to buy a flashlight using 123A or 18650 batteries? Does the fandyfire stl-v6 work with rechargeable batteries too?