I’m probably going to drive it at 7 amps so which driver shall I get? I looked on mountain electronics but shipping to UK costs quite a bit and I can’t find any that are powerful enough.
From reading on here the 1mm is best driven around 4.5 - 5A so you’d only be looking at 7A for the 2mm.
I’m in the UK and i’ve used Fasttech, Banggood and Kaidomain, cheapest delivery (free ) at the expense of delivery time, 3-4 weeks in my experience (surprisingly it seems quickest around this time of year). The only driver i can think of off the top of my head from them is:
Direct drives for full power, should be easy enough to find info on here about the driver and torches with that driver, and if you haven’t ordered the other stuff from Banggood already delivery shouldn’t be an issue.
For quicker delivery you could look at this driver from the same place you’re getting the LED, Led4power: https://led4power.com/product/ld-a4-2-12amp-17mm-constant-current-led-flashlight-driver/
I ordered from them for the first time this week (white flats and driver, same as you ) so can’t comment yet on actual delivery times but he’s in the EU so expecting it to be much quicker than from China and delivery is cheap.
The owner, Led4power: http://budgetlightforum.com/user/6079 , is on here so you could always ask him.
Your first mod ever and you’re gonna try to focus a flat white in a minigt?
The flat white is the hardest emitter to focus properly. THE. HARDEST.
Till you’ve got some emitter focusing under your belt I’d seriously recommend not making this your first mod…
You don’t just need it correctly centered, for proper focus you have to adjust the height of the led / reflector as well. Literally in fractions of mm incriments. Do you even have a meter to measure the kcd?
I ordered a ut383bt meter. It’s not the best but should be good enough. I was aware that it’s not easy to focus but didn’t know it’s that hard. I’ve ordered everything so I’m just gna have to do it anyway. I read that kapton tape is needed to raise the reflector. Is this true?
Well, yes and no
Usually, people use it to be able to lower te reflector for a better focus and prevent a short circuit by the reflector to the leads.
Usually, you have a centering ring , but 9 out of 10 times, that prevents correct focus
But the driver will need attention with these low Vf LEDs.
I don’t know the “LG mj1” driver, but i hope it is a current limited driver, not a DD (not limited) driver.
I’ve read the 2mm² white flat can handle up to 8 Amperes, but you will easily exceed that with a DD driver on a freshly charged battery.
I decided to get the 1mm LED instead. I’m going to be using the stock driver with an LG MJ1 cell. It might end up exceeding 6 amps which is a bit too much so I’ll have to find a way to add resistance.
) at the expense of delivery time, 3-4 weeks in my experience (surprisingly it seems quickest around this time of year). The only driver i can think of off the top of my head from them is:
) so can’t comment yet on actual delivery times but he’s in the EU so expecting it to be much quicker than from China and delivery is cheap.