- Reaction score
- 618
It might be wise to take on board that these trade sheds are selling this new low power hype span down from the trade sellers.
There is no real evidence that LEDs work for the time stated on the packet. 100,000 hours is standard for a LED indicator lamp. Once you ramp up the current then anything can happen.
Last year the MTBF lamp life went down to 50,000 hours and now it stands at 30,000 hours.
When you look at how they are fired up, leading edge, trailing edge or PWM control and whether to use a constant voltage Tx or a constant current Tx you have enough variables to cause all sorts of failure.
Then when the lamps fail do they blow open circuit or closed circuit. MOSFETS are known to blow S/C which means all the lights have to be removed so that the MCB can be reset.
To summarize, this is new technology and everybody is in the business in selling snake oil, so don't let the trade counters blow smoke up your rear orifice.....
There is no real evidence that LEDs work for the time stated on the packet. 100,000 hours is standard for a LED indicator lamp. Once you ramp up the current then anything can happen.
Last year the MTBF lamp life went down to 50,000 hours and now it stands at 30,000 hours.
When you look at how they are fired up, leading edge, trailing edge or PWM control and whether to use a constant voltage Tx or a constant current Tx you have enough variables to cause all sorts of failure.
Then when the lamps fail do they blow open circuit or closed circuit. MOSFETS are known to blow S/C which means all the lights have to be removed so that the MCB can be reset.
To summarize, this is new technology and everybody is in the business in selling snake oil, so don't let the trade counters blow smoke up your rear orifice.....