most oven cleaners dont clean ovens very well either. This solution would do that better too.
do a cheap ebay light first. Just keep water pan near to rinse the light. Dont use your bare fingers to fish out the parts from the solution. Solution cold is relatively mild and is slow to react. Warming it makes all the difference. So if a cold solution works its too strong, add water.
Hey PD… in an XM-L2 I love the 4C, but in the XP-L I am really liking 5A3 and in the XP-L Hi I really like the 5A2. I have finally really found the sweet spot for me, when not using a 219B SW40.
OK, I guess this one is not quite finished and this is a teaser. There will be 7x dedomed XPL V6 1A emitters behind narrow TIR optics. I estimate there will be 8000+ lumens OTF and 130+Kcd.
So today I soaked a host in lye to get the ano off. I was really worried for awhile because I left the biggest part in too long and it started turning much darker than the other pieces. I though it was all going to be a mismatch. But then I discovered vinegar and some rubbing washed away the dark coating and brought back the nice bright aluminum.
1. Lye and wire brush
2. White wine vinegar
3. 1000grit sandpaper
4. 000 steel wool
5. Buffing wheel and mother’s mag
6. fast orange and water
Sorry, no pics until the rest of the light is done.
Saw a few a while back put up on ebay as 99 cent auctions. I ended up with 4 total and didn’t pay more than $2.50 for any one.
Got 3 got Gold with UltraFire branding and this VastFire in Black. All are 18650. Did get one 14500 slipped in there too, and I Finally ordered some 14500 batts from MtnE on my last order. Got the Windy ones.
I frequently check “LED” auctions that are “ending soon”. Just gotta get lucky.
Got a few wall chargers with a plug for $1.00 shipped for these lights too on Auction. Gave a couple lights and chargers away with a good laptop pull batt. Nice gift for about $3.50 or less.
also found a charger for $1 110V 220v Power Rechargeable Flashlight Charger 18650 Lithium Battery 4.2V Charger US EU Plug
These chartgers start Red when charging and Green when done.
The flashlights I have use a 20mm MCPCB. Black Vastfire one I put the 219c into had some 3mm junk emitter ant I had to hog out the reflector centering ring. I think the UF brands have the 3.5mm emitters.
I’m finally getting to work on my L2, and the driver build went so smoothly I was practically dancing in my office. I tried dedoming and XM-L2 U3 by mixing a few methods, and the emitter came out incredibly clean. I get it all built turn it on, and it works perfectly. I pull the tail off and hook up my clamp meter to get a reading, tap the button to get to turbo, measure 5.25A and… pop. :rage:
So I assume the bond wires must have been invisibly damaged with my special dedome method. A bit annoying, but whatever. I reflow a new emitter, and just drop it in gas to let it go the old fashioned way. It comes out not perfect, but good enough. Work s great on the power supply, so I get to rebuilding the L2. I have a short somewhere and I can’t figure it out. 45min later it seems it’s finally good. I fire it up, it works great. Turbo is even brighter than before :laughing: So I take the tail off to see what I’m getting with the clamp, tap the button to get to turbo, measure 5.4A and… pop. :rage: :rage: :zipper_mouth_face:
I’ve never had this happen. Never. :weary:
I’m using a Basen cell with a Sir800dp for the first time. I haven’t bypassed the tail spring yet. I can only assume that the resistance of the tail spring kept it from popping in the light, then my thick wire I use with the clamp was just too much.