Thanks Dale (and Steve) The someone is actually my mother in law, it is her birthday sunday. She is an artistic therapist and does not get good daylight in her studio in the cellar of the house. This is solved by some daylight fluorescent tubes but it comes in handy at times to have some floody instant real daylight to check colours.
Btw, next to my ROT66, this light looks really green. Face it guys, reality is ugly green :party:
Talking about green, which generation Oslon Square were these, and how do you like the tint?
My Astrolux A01 quit working almost 2 years ago, and I had spare parts laying around from the v1.0 of my Booster Tails. So what to do? Create a basic boost driver for it! No MCU, no modes, no PWM… just nice, consistent output. It can technically handle a 10440 as well (input: 0.7 - 5.5 V), but I don’t see a need for that.
My 7yo needed a simple light for reading at night, so I dialed it down to ~6.7mA to the 219B for 3 lumens. I think that may even be too bright.
Nice one gchart! I will have to read into your booster tails, they are nice.
Thanks djozz! And that Convoy S9 Optisolis build looks very cool, good job on that!
I think it is so nice that I’m going to repeat the mod for myself (hopefully making a less dirty board), maybe in 6500K Optisolis leds. Just ordered a new S9 with short tube for that.
Can I be your son for a week or so gchart? 
Aren’t we all family already? One, big happy BLF family 
Mod of the type: not much gain but also not much work. I bypassed the two springs of my mini-GT (that already had a dedomed XP-G2 S4 2B). Throw went up from 229 kcd to 241 kcd. So the light became a bit better and a bit uglier.
So the 300 kcd that Vinh gets from the miniGT with a Black Flat can in principle be had with just the springs bypassed, if you go by the luminance table that The_Driver maintains.
Emisar D4 lighted switch mod again. I used a piece of 12mm x 1mm carbon fibre tube, 10mm x 1mm clear acrylic tube, 0.5mm clear silicone sheet and 0.5mm black kydex for a green lighted glow circle around the switch button.
CRX, your mods never fail to impress
Thanks mate 
Nitecore NU20
Dude, are you sure you don’t have a wand or something?
I have been called a wizard before :laughing:
Hmmm, I’ve got enough Scottish ancestry to be able to wear a kilt, need to get me one and see if it influences my creative juices… 
Nice work, again, always enjoy seeing what you’re up to and it’s always a surprise. lol
Thanks. The creative juices aren’t in the kilt, it’s in the haggis.
Your bypass soldering looks great to me. I wouldn’t have the guts to have tried what you did on an already awesome flashlight.
Generation 0 Sinner custom hosts switch went bad a few years ago. The 10A Judco is no longer available (highest latchng switch rating they make now is 5A @ 14v and the base is physically larger). After conversing with Sulman as well as parts suppliers I knew what had to be done…
5A Judco modified to have a 20x20mm square base. Black delrin ring is just spring support, not a PCB. It looks rickety but this is actually as-designed originally (switch fits&functions as Sulmans original 10A did)
We can rebuilt him, make his brighter, stronger, throwier.
I’m excited, the light broke ~2015/2016!
For a bad switch in the Sinner, I just flip the retaining rings around and use a standard mini Omten board with spring. (plastic retaining ring to press the boot, brass ring up top to carry ground.) Very simple, might need to open the hole in the brass ring a bit for spring clearance but overall this is the easiest way to upgrade the switch in a Sinner.