Interesting… I swapped out the MOSFET for an SIR404DP, changed the leads to Turnigy 16ga. With spring bypasses in place (still dual springs) and Samsung 30T’s freshly charged this light makes 10,500 lumens at start and drops down into the mid 8000’s by 30 seconds. In this case, the head IS starting to warm up nicely.
Edit: Recharged the 30T’s, looks like it’s pulling 21.3A at start at the tail.
10,500 is the most I’ve ever seen from an XHP-70.2… and this is with my lightbox calibrated and diffused so the meter reading is actual numbers, I really feel like my meter is showing a little low but it’s where I wound up with 6 diffusion panels, the Maukka calibration lights were almost spot on, but low on the S2+ even if only a little.
I get 253.25Kcd at start and 236.75Kcd at 30 seconds on the meter at a 5M reading.
This is on the box, sorry, I guess I flipped the i8 to landscape AFTER I started the video. Technology sometimes eludes me…
Mine arrived 1 week ago with the standard (non-HD) batteries.
I was thinking of ordering a couple HD’s - as I understand that will increase the output a bit.
If there is a BLF version in the works, I would just wait for that light.
So the question is - when might the BLF version might be available?
I have another SP70 that should be here either tomorrow (Fri) or Monday so I can check with those cells.
Sooooo I just noticed one cell has a dent on the negative and the nipple pressed in I’m guessing this is causing the low numbers. I think Jason had this happen awhile back.
I’ll add some solder and report back. If this is the cause I’ll edit my original comment