해석 귀찮은사람들 마지막 문장만 봐바

My neighbor pays $30 every month for size-D batteries to operate his Dotono motion- activated lights. 

Even though they emit a lot of light, the cost of operation surprised me. As an alternative, 

I thought l，d try out F&Q lights, which have a money-back guarantee. To experiment, 

I purchased only one outdoor wall light just to test it out. I put it out in the sun to charge up for three hours, 

and that was enough for it to stay lit the whole night! It was also very sensitive to any motion.

 I，ve made my choice, and it wasn’t even close. I，m sure l，ll be happy with more.

저거를 어떻게 " 내가 선택했지만 턱없이 부족했다. 더 많이 있어야 든든하리라 확신했다. " 이딴식으로 해석할수 있는거지

도대체 어떻게 저런 해석이 나온건지 ㅈㄴ찾아봄  내가 이상한거니?