While most LED powered pico and pocket projectors we have reviewed have produced, on average, only about 2/3 of the manufacturer claimed maximum light output, the LG PH300 measured only about 56% as bright as specified. Now that was using the out-of-the-box picture settings for each picture mode and when using a Blu-ray Disc player connected via HDMI and playing a disc with a reference 100% white test pattern. It is possible that by changing the factory defaults values for such adjustments as contrast, it might be possible to increase the maximum brightness a little.
I also measured the effect of the projector's Energy Saving setting. The table shows the lumens output in the full power mode (i.e, minimum energy saving). Going to the middle power mode reduces the image brightness by about 23% and the lowest power mode (i.e., maximum energy savings) reduces the image brightness by about 56%.