Solution: 1.The light dark issue.
Reply:Please check the battery if well fixed, you can refix the battery and bulb when the bulb couldn't connect well.If the light is still not bright, you can check if the bulb already burned out .
2.The lampshade unturning issue.
Reply: Beat the lampshade lightly,move lampshade and revolves the half period,if still not revolves, you need to disassembling the basement and adjust the shrapnel in the lampshade.