I donโt know what you will all make of this, but it works, and works well.
The design is basically very simple, a PVC box surrounded by a copper shroud as a heatsink and conductor. This has 3 SSC P7 emitters mounted on it with Ledil reflectors.
The copper shroud is sealed to the box with silicone, and the lens assembly which covers the emitters is sealed in the same way. The assembly is held together by 8 3mm stainless steel setscrews. The lens assembly is of high pressure PVC, the glass is 4mm laminated glass.
The bottom of the lamp has a 3 pin charging socket for a balance charger covered by a plastic screw cap. The PVC box contains 4 18650 Li Ion cells 2 X 2 series and parallel to give average of 8 volts. I emitter has its own driver, the other 2 are series wired and have the driver solution I have described when this setup was in a caplamp.
๐Personal-Album-128-Image-48235[linkphoto]Personal-Album-128-Image-48235[/linkphoto][/link]
The switch at the top is totally exposed, has high contact area of copper to copper, and is intended to work under water or in wet conditions. This switch is easily disassembled for cleaning and only needs a screwdriver.
The whole lamp is solidly potted in silicone.
The switch rotates anti clockwise, first contact position brings on 1 emitter with low, medium, and full settings, quickly engage/disengage to go up and down, second contact position brings the series array of 2 on full power, the 3rd maintains this and also brings the first back on line with ability to change mode. Mode change is easily accomplished by flicking the contact spring.
๐Personal-Album-128-Image-48234[linkphoto]Personal-Album-128-Image-48234[/linkphoto][/link]
The lamp is very powerful and has a wide spread of light, it is eminently suitable for photography or as a divers lamp, or just general underground use where area lighting is required as apposed to a beam.
As final comment I have to say the lamp does get very hot after a while and will probably require some adhesive heat sinks. Interestingly, the same set up was OK in one of my caplamp conversions, a tribute to my thermodynamics.
Its on odd looking piece of kit but it does what it says on the tin.
My avatar is a poor likeness.