Outer Limits 4x4 Board

hi just brought a 90 model gq and there seems to be low power for the low beam on the l/h head light hi beam works fine it just low beam has problems have put in a new globe still same prob checked with a test light there is a very little bit power comming through but not enough to light up the test light properly any ideas would be appreciated

Depending on where you measured the power... sometimes the H4 sockets are in bad shape due to heat damage.