I like the idea of turning the light into a mule by just removing the reflector. Not sure about the DC fix thing as I don’t want it marking up the lens
I was a bit concerned after reading about this light that the beam might be too focused for my needs but it seems the great thing about the C8 is easy of modifying. I’m quite good with soldering so I can always order different emmiters to try I am surpised the board is not screwed down, I guess the reflector applies downwards pressure?
The board is screwed down, most of the C8’s I’ve seen have a head on the screw that compresses the MCPCB. If not, replace the screws with ones that do. Or use Arctic Alumina Thermal Adhesive underneath the MCPCB. The lens itself would still need to be glued into the bezel without a reflector to hold it.
Screws meant to clamp down on metal look like this. These are pan head.
The screws used in the C8 have a tapered head (countersunk head) that will split and distort the mcpcb if tightened too much. So even though the screws can provide a certain amount of clamping force, they are not meant to do that. It is just a side effect.
If I were going to not use the reflector, I would swap to some proper pan head screws that were longer than stock to provide a good clamping force without stripping the threads or distorting the mcpcb.
I guess I can be a bit too technical or precise about things. Sorry.
Switching screws shouldn’t be too difficult. I don’t think I would use thermal epoxy in case I ever need to swap the emitter. I was wondering is the pill removable in this light? If it is would it not be simple to have different pills with LED and driver mounted and just swap them in and out?
It’s not “just a side effect”, it’s what they do, even when they have tapered heads.
All they have to do is squish the thermal greaseinto a very thin layer.
Well, technically you’re right, but practically it works well with tapered heads also, but it’s not ideal for clamping down the board on the shelf.
But it doesn’t have to be ideal, it has to be good enough.
They probably use tapered heads to prevent the PCB from moving sideways when tightening the screws.\
It would probably be my choice too if i was the manufacturer.
And with copper and aluminium boards, the screw will dent the contact area with the PCB, not deform or bend the PCB.
does anyone other than Convoy sell the driver retaining rings, i contacted Simon and he said he would add to an order, but with no paypal and a foreign transaction fee plus i would like to purchase a few, i was just wondering.
C8 with the XP-L HI U6-3A 5000K diode has recently reached me. I checked how it is really and it’s perfect. Score 5079K. Current measurement in three light modes 0.23A / 1.45A / 2.89A
2381 lux with 5 meters
Pure white is a strong relative term. A lot depends on the lighting that surrounds us. For me, the range I like is 4000-7000K, but the most is 5000K. At night, 4000K works better with street lighting or fog. On a cloudy day, I prefer 6500K etc.
The graph helps in determining whether there are any additional shifts towards a certain color. To calculate the temperature of light on the basis of x / y, I use such a simple formula