Ok, another installment of the LED test series, think this is the last of the test I have done so far.
Thanks to KawiBoy1428 for donating the LED’s for testing!
First up we have the best output test from an undamaged high bin LED.
Click any image to see it larger
This next test is of a low bin 90cri HD version and the goal with this one was to see if it could handle an FET driver at full power and what the efficiency was like at lower levels. It only looses 11% efficiency at 50% duty. So while the super low modes would not be very efficient the mid and high modes will work just fine with an FET + PWM to limit current.
This last test is purely to see what these LED’s could handle and when it would die. There had been debate in the past that these led’s randomly combust at ~3A, it seems they can actually handle quite a bit more then that.
It is interesting that both the XHP35 and the XP-L2 both max out around ~40W, I am thinking this might be the “limit” for the XP footprint to dissipate heat with the tiny thermal pad. I would love to see the XM-L3 released with the latest setup and see if it can handle more power due to the larger footprint.
The Second Amendment is in place in case the politicians ignore the others.
Government is the great fiction, through which everybody endeavors to live at the expense of everybody else. -- Frederic Bastiat , French economist(1801-1850)
My LED Test series - XP-L2 V5 - Nichia 219C 90+ CRI - Latticebright "XM-L" - XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5 - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT