I have the nichia and tried to order the other, but they will not ship to the US.
There is a thread on why
The LG throws more light but a percentage of that light is blocked by the filter so it is wasted. There are some pics of each on a different thread. It is hard to measure output because the meters usually do not see these frequencies either. Seemed like they have similar outputs and do not heat up too bad if used normally in short bursts.
Feel free to do a side by side comparison and post it.