light indicator plz help

i dont understand something!!!

my light indicator was very strong during charge (strong red) and the green after charge was very shiny and strong then i wipe in recovery and flash diffrent rom then get back to my current rom and sudenlly the light sensore is half the strength ...anybody can tell be how is that happend?

i think it start when i flash the unikernel v7 test but after i turn back the kernel i had and the same light strength plz your help