Flesher relay, turn signal, warning lights, modification for LED bulbs

 7 pin flasher used in Alfa Romeo, BMW,..
For other types of fleshers fix should be similar.
Some have markings from 1 to 7,
some other, here is what I encounted:

1        2      3     4    5    6      7
15R   31   HW    L   R   30    15L

 As Ibulb ~ 4 x ILED => R1LED = 4x R1bulb for same VR1
change R2 with Pot (~500ohm) to get oscilations
right, which in this case was changing it from
330 ohm to 220 ohm 
R2 = 330 >> 220

 R1 = 0.5 >> 2.2  ohm   /2W min


flashing rate needs to be in the range from
90 ~ 110 flash/min

30                31
+ power        -- ground

15R  -15L
right- left sig. from handle-SW

R      -  L
right - left LED bulbs

HW
left & right (warning light)