turn 1 switch on for 10 mins then off# y0 w1 j& {/ x3 ^* z! J# J) a, C
turn another 1 on then go to the other housetvb now,tvbnow,bttvb A, z: S8 I- }: g. L( G
公仔箱論壇& h, m9 R0 @6 A- v6 |3 g* \4 B1 x
the hot light bulb is the first the cold light bulb is the 3rd |