Xov xwm

Cov teeb pom kev hnub ci tau dhau los ua ib qho ntawm cov kev daws teeb pom kev zoo sab nraum zoov uas siv tau zoo tshaj plaws thiab txuag hluav taws xob thoob ntiaj teb. Nrog rau kev txhim kho sai ntawm cov thev naus laus zis hnub ci, roj teeb lithium, thiab cov chips LED ua haujlwm tau zoo, cov teeb pom kev hnub ci tam sim no tau siv dav hauv ntau yam lag luam thiab ib puag ncig. Lawv lub peev xwm ua haujlwm yam tsis muaj hluav taws xob sab nraud, ua ke nrog cov nqi kho qis thiab kev ruaj khov zoo heev, ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau ob qho tib si pej xeem thiab ntiag tug.

Nyob rau xyoo tas los no, cov teeb pom kev hnub ci tau dhau los ua ib feem tseem ceeb ntawm cov haujlwm tsim kho vaj tse hauv nroog thiab thaj chaw nyob deb nroog. Kev sib xyaw ua ke ntawm lub zog ruaj khov nrog cov thev naus laus zis teeb pom kev zoo siab heev, lawv muab kev xaiv zoo thiab zoo rau ib puag ncig piv rau cov teeb pom kev ib txwm muaj.