Hi,
What should i do to do not burn led?
Simple answer: drive it within it´s specifications. Thus usually a datasheet is needed.
But the (raw) calculation is not difficult:
1W @ 6V gives about 160mA
so if the driver gives 700mA you need to parallel 5 LEDs (strings) to get a LED current below 160mA.
700mA / 5 = 140mA
if you connect 6 (strings) in parallel you are on the safe side. Then you have 10 in series, making 10 x 6V = 60V total voltage.
Now you say you measure 112V. Here I see the problem. This is too much.
This means either your LED specification is not correct or the LED driver specification is not correct, or the LED driver is defective.
--> post the LED datasheet and a photo of your LEDs including connections
--> post the LED driver datasheet and a photo of your LED driver
Not to the problem related:
If all LEDs are from the same production batch I see no problem, but to be on the safe side I´d add a series resitor of 20 Ohms 1W in series with each string. This ensures better current distribution and more equal LED brightness.
Klaus