NO STOCK AT GEARBEST. As usual, they are selling stuff that there is no stock on and as usual, I canceled the order. Thank's Gearbest, you are my best line of defense when impulse buying, because you never have anything in stock.
BOSS1 gb is up for discussion today. Apologize to all for the delay, vendor overlooked one of my 4th Jan reply. I proposed for custom upgrade parts but it was turned down due to low demand (<100). Anyway, we will try our best to group buy back on track and list the stock light up for sale soon.
Hey Justin - No worries. Soon the wife will join BLF to find out what you need to mod and then order a bunch of stuff for ya....just to get you out of the house. LOL
Nice to see you contemplating again Justin, warming up a bit huh? Beautiful day today, just gorgeous out… 65 and a light breeze, blue skies, but I’m sure we’ll get some nasty yet, always seem to in late Jan or early Feb.
Edit: Sorry, forgot to mention, each LED was tested for 20 seconds.
It was difficult taking photos with my mobile phone of all the readings I took. I eventually only took 2 photos of my setup.
Here I’m measuring a fully charged 25R. I’ve used the 25R to get an indication of the voltage drop when applied to an XP-G2 S4 LED. With initial contact, it dropped to 3.99-4.00 volts.
I then had to dialed in my power supply (seen in the background) to 4.70 volts to get 3.99-4.00 volts when applied to the LED. The wires running from my power supply is thin and quite long.
The wires running from the amp meter to the LED is 18 gauge and around 10cm long. The amp readings I get on this meter is 99% in line with that of my Fluke Clamp Meter.
shrick - wow, lot of work there - great info! Interesting the FT XP-G2's had the greatest variance, where the S4's and U4's were pretty much in the same range. You did get some high amps from those S2's though, more inline with what Mitko gets I'm suspecting from those #'s. Wonder if the reflow method of temp/time/solder used makes a difference, or just that there's such variance in the LED's, or something. I'm suspecting this more and more, since Mitko does high volume, seems to be fairly consistent results, while for me, I'm a little all over the place - different methods, maybe different time/temps, and I got lower amps on S2's mostly, even with domes on so not related to dedoming.
Hope so, soon. freeme's doing it - see his last status on it in post #325 here, probably running the GB from this thread: https://budgetlightforum.com/t/-/35973