I am doing project on LED lights. I want to know what is maximum input current can be sink by LED 2835
which is 0.2 watt. some datasheets showing 90 mA and some are showing 180 mA.

 

P = IV

Post some part numbers and/or datasheets. 2835 is a package size.

 

Here is I have attached pdf file of datasheet.

my current is 90 mA, Input is 230 V AC. I am connecting package size of 2835 LED in 5 parallel LED
in series combination. I am using non isolated buck boost converter, when I switch on the power
LED starts blinking, why is this so ??

 

when I switch on the power
LED starts blinking, why is this so ??

The datasheet for the converter should tell you.

 

I want to know what is maximum input current can be sink by LED 2835 which is 0.2 watt. some datasheets showing 90 mA and some are showing 180 mA.

According to the datasheet, maximum continuous current is 90mA and peak (for up to 100uS, 1/4 duty cycle) is 120mA.

 

my current is 90 mA, Input is 230 V AC. I am connecting package size of 2835 LED in 5 parallel LED
in series combination. I am using non isolated buck boost converter, when I switch on the power LED starts blinking, why is this so ??

Post a schematic. Include information on the power supply.