The kids are of school for a week now, so progress has been slow.
The driver arrived, so it was time to mount the LED's and solder them.
All went reasonably smoothly. If slightly messily, especially since I've ended up having to use silicone sealant in the screw holes.We'll see how that idea holds water next week. Literally.
You can see the power socket ready to mount into the reflector unit.
All the wiring will be taped/glued down and hidden in the gap between the cooling bar and the reflector. (the bar will sit in the groove of this reflector.)
So heart in hands I throw the switch..
...and let there be light. and lots of it, but only briefly. Notice the bare 12W cfl for comparison.I ran it for a few seconds at first, then realised it was thermally OK, so...
It is ridiculously bright, and not as hot as feared. Without liquid in the pipe, chip temperatures stabilised at 48ļC, measured where the LED chip meets the star mount board, after 5 minutes the heatsink bar was getting warm too. So after a voltage reading across an LED (3.2V) I thought I needed to take a current reading.
This is probably where I made a stupid error. To measure the current I put the meter into the circuit in the same way as I have before, (but I haven't done it with an LED driver.)
The driver went bang and died. No obvious damage. What did I do wrong? (Apart from buying a cheap driver!)
So I have a slight setback, but nothing I can't get over.
Now waiting on a new driver, but at least I can get the plumbing sorted!