This is my take on a lantern attachment for he Q8. My girlfriend thinks it is ugly but I think it looks ok.
It is a 95-or-so% downlight which has advantages and disadvantages. When carrying it, very little light gets in your eyes directly from the lantern which aids looking around. When placed on a table it is a pleasant reading light for the same reason. But if you want to illuminate an area, it has to be hung up at some height because having it sitting on the ground it will just illuminate your feet. The light is way too cool for a camping light, but I plan to put 2700K 219C's in one of my Q8's anyway, so that will be my lantern Q8. I know that a camping lantern is aimed at low illumination and long runtime, but I do not mind to have the huge output of the Q8 at hand for illuminating an area if needed.
These are the parts:
I sawed a replacement lens out of 3mm clear polycarbonate sheet, the exact same diameter of the stock lens. Polycarbonate is tough and will not crack, and it is fairly heat-resistant. I drilled two 5mm holes in it, 17mm apart. The M5 screw heads will nicely clear the reflector then. Under the head of the screws a stiff rubber o-ring was put to waterproof the lens. The 95mm diameter hood is made of 3mm aluminium sheet that I hammered into shape over a 65mm diameter iron disc that I had around (from a speaker magnet I believe it came). The outside is painted with flat black heater paint, the inside I painted with latex wall paint. I'm planning on a nicer looking and more durable flat white metal paint, but the latex paint is what I had around and works well for thetime being.
Some more pics:
The latex paint does not look great but does the job:
The beam is fully captured by the hood, the leds themselves can not be seen from any angle, just some indirect stray light from the reflector can be seen:
The screw heads clear the reflector, they are positioned right in between the reflector cups:
The lantern gives an even and fairly diffuse illumination from the hood downwards, plus little light upwards which is stray light coming from the reflector and bezel:
Standing on the table, the hood is high up enough to produce a useful light cone for reading: