Hi i have lighting tower( temerary lighting) 4 lights 110 volts each, 2 stayon the other 2 when switched together pull 25 amps and blow the 15amp fuse when only 1 switched on it will stay on with 8amps same with the other.volts stay the same all round. any ideas ?

 

If each light draws 8A when it is warmed up then it will draw 80A while it is heating.
Even if the lamps are hot, two will draw 16A and will blow a 15A fuse.

Use lower power light bulbs.