I have got a LED fixture with a flickering problem. As I am unable to check the output due to lack of equipment I would like to research and gather some information first. The switch used is not dimmed, it is an usual mains switch.
It blinks at around 2 Hz. LED driver is based on BP3106 chip with a similar circuit as per image (taken from datasheet):
Visual inspection does not show any damage on output capacitors or any other part. I must say that this lamp worked at least 1 year before it started failing. See photo below:
I presume it is a problem with output capacitors but due to lack of experience and equipment I cannot find anything. I could try to check at work in a week time but meanwhile may I get some enlightment regarding this? What part(s) is/are more likely to fail after a year? Bear on mind this looks like a generic LED driver (no manufacturer information attached on housing). Specs are:
LED Driver: Constant current, Model LF02/25-30*1W, input 180-260V 50/60Hz, output 285-315mA, 75-100V.
Lamp: 5x 12V/5W connected in series.