The OEM Triumph headlamp provides very poor illumination. Try one of the new LED “bulbs” I got mine from Cyclops, but ADVMonster makes one, too. No-name Chinese LEDs are also available very cheaply on ebay, but it can be hit or miss how well they work. The Cyclops LED headlight works great, puts out twice the light of the OEM light with about half the draw. Pretty easy fix for night riding…
Just replacing the bulb with the LED unit was sufficient. Incredible improvement.