I blew a fuse too but I think it was because I had the lights on when I was putting the inverted type bulb in the front parking light lens and I touched the silvered part of the lens with a point on the PCB on the 'bulb'.
What I have is the multi-element (20 LED?) 'inverted' type in the middle pic above in the front parking lights, and the 5 element type in the top pic for the license plate lights.
These are all on the same fuse and I'd been running the opposite for a while, i.e., the 'inverted' over the license plate, and the 5 element in the front parking lens. The multi-element 20 element is brighter IMHO so it should be used in the front. So I swapped locations.
It *is* a pain to replace that fuse in the 'upside down' fuse box. Really, Nissan? Luckily I was at the dealer and doing the lights during a charge so I got the Leaf tech to help.
To sum: I kind of doubt it's a problem with any of these lights blowing the fuse unless it's defective. IIRC There are 2x10 amp fuses for 4x5W bulbs which is under .5 amps per bulb (VoltsxAmps=watts so 12x.5=6 watts) for the 5 watt incandescent. No way the LED is drawing 6 times what the incandescent draws unless it's defective. (I just did P90X2 so forgive me if my math is bad. Suffice to say, you will only blow a 10A fuse if something shorts out. As expected.)
To avoid a short my advice it: Place the bulb in the socket, lay it on the plastic section of the hood shroud, see if it lights. If so, power off and screw it back in the lens. If not, polarity is probably reversed (LEDs you know) so turn it 180 degrees and put it back in the holder and turn it back on. Replace if good. Bending the wires on the bulb outwards a little makes it fit a little tighter in the socket.
* Don't be removing and replacing and moving things around when the power is on. * Take a little time and save yourself the trouble.
Well, that was exhaustive, wasn't it? I'm spent.
Pics if I get motivated.