Which part of this LED chip is "+" and "-"?

[kaykay]

One side of the chip has a little hole on the pin. Is this side the + or -?

Looking at my picture, left or right is "+"?

[qingwen]

You can test by just touching the bare wires before soldering. the light should only light up in one direction, and it will not do any harm to the LED if wrong i think..

[kaykay]

Yup. I did actually solder it the wrong way round. I just resoldered the first "+" and the final "-" and it worked. Haha.

[MadScientist]

You can test by just touching the bare wires before soldering. the light should only light up in one direction, and it will not do any harm to the LED if wrong i think..

Yup, no harm unless you are applying very high voltages

[CFOh]

Try multimeter.. most reliable... Cheers..

[kaykay]

Yup. Used the multimeter to determine that the polarity are reversed.

I trusted the shopkeeper in SLT to say it was "+" when it was "-".

Haha.

[sherman]

Can use a battery to test .No problem

[dijovi]

From the pic left should be neg..