A pulsed light adjustment circuit is generating fluctuations of energy light for body sensation. The pulsed light adjustment circuit includes a control signal generating element, a driving element, a group of light-emitting diode and a fluctuations light switch module. The control signal generating element is generating a control signals and has a high level signal with a low level signal in a period of time. The driving element is receiving a drive power and the control signal. When the control signal was high level signal, the driving element provides the drive power output. When the control signal was low level signal, the driving element prohibits the driving power output. The light-emitting diode is electroluminescence by the drive power of output from the driven element. The fluctuations light switch module is controlling the light-emitting diode receiving the drive power for electricity quantity. Thereby the light-emitting diode can produce multiple luminance.一種脈衝光調節電路是供產生一個可供身體感受波動的能量光,主要包括一個控制訊號產生元件、一個驅動元件、一組發光二極體及一個波動光切換模組,其中控制訊號產生元件是供產生一個控制訊號,在一個時間周期中具有一個高準位訊號及一個低準位訊號,驅動元件是供接收一個驅動電源及控制訊號,當控制訊號呈高準位訊號時,提供驅動電源輸出,當控制訊號呈低準位訊號時,停止驅動電源輸出,發光二極體是受驅動元件輸出的驅動電源致能發光,波動光切換模組是供調控發光二極體受驅動電源的致能程度,令發光二極體呈現多個光照度。1‧‧‧控制訊號產生元件2‧‧‧驅動元件3‧‧‧發光二極體4‧‧‧波動光切換模組11‧‧‧控制訊號Vcc‧‧‧驅動電源41‧‧‧第一電阻42‧‧‧第二電阻43‧‧‧控制開關431‧‧‧第一端432‧‧‧第二端433‧‧‧第三端40‧‧‧接地端
