You can do a rough simple scientific calculation.
This product is only rated at 2000BTU at 280W. For a typical HDB/condo MBR of about 15 sqm average, you will need at least 8000 BTU to effectively cool it down to say 25 Deg C before the compressor shuts off or lower its power (for inverter).
This means that although it consumes only 280W of power, it's compressor needs to be turned on 4x longer to achieve same effect than normal properly sized aircon.
Even for a normal single window-unit
8000 BTU air conditioner needs at least 715 watts for proper cooling.
So this ranjiao product needs at least 280W x 4 = 1120W time period to cool down a room properly.
End up : Not only becomes LPPL but worse off with even higher power consumption and extremely slow cooling due to its poor cooling efficiency.
It becomes like what happened to those ranjiao chilled-water aircon at Tengah HDB where owners keep complaining that 30 mins later their room still don't feel cold enough LOL.
If such products are so good, then all aircon companies can close shop already. Don't believe you go buy and try then come back and tell us how it goes LOL.
As the saying goes, 'One good no two good. If both good, price no good' LOL.