... . Integration design, easy to carry, put solar panel, LED lamp, battery and controller all in one, don't need any cable,;2. Installation ... *1*0.3)/(1.4*4*3)=24luxAverage Illuminance 2.=(1500*1*0.3)/(1.4*4*3)=27 luxAverage Illuminance 1.=(1320*1*0.3)/(1 ... .4*6*3)=16luxAverage Illuminance 2.=(1500*1*0.3)/(1 ...