Brighter Headlights?

Adding in-line relays, which feed power directly to the globes, using decent cables eg 2.5mm² or even 4mm², normally improves the brightness of the old globes.  This is because you eliminate the volt drop associated with the longer thin cable, which is routed through many connectors along a long route which includes the fuse box, light switch and the dim/bright switch.

A popular way to improve headlights was to install stronger globes, such as with 100 Watt globes.  This was outlawed recently, and is no longer an option.  A relay system was needed for this method as the original cables are normally too thin to cater for the extra current draw.  There have been complaints that the 100W globes did not improve visibility all that much, and that the focus point of the globes is not precise enough, causing the main beam to be too dispersed.

I have recently changed my 100 watt globes with the new Osram Silver Stars, after recommendations from a few fellow off-roaders.  The results are amazing. The following pictures were taken with the right hand headlamp containing a Silver Star globe and the left hand side a 100W globe.  Looking at them from the front, both globes are very bright, with the 100w globe a bit brighter, and the Silver Star "whiter"

The following two pictures show how unfocussed the 100w globe at the left hand is, as compared to the Silver Star on the right.  This also explains why they are annoyingly bright to oncoming traffic, due to the "spilled", unfocused light beams.

The lights on dim, and...

the lights on bright.