06-05-2018, 05:07 PM
Although my RN is 12v, I have had 36w/36w double dip halogen bulbs in the original reflectors for the last 15 years. They provide a good beam of light. I removed the old Lucas Graves bulbholder and replaced with a 15 mm bulb adaptor, making it adjustable by soldering on to the reflector a brass collar with a 4BA tapping to accept a grub screw. You can then move the bulb in and out to achieve the optimum beams for dip and main. No reason why you can’t do this with 6v halogens. If you aren’t driving hundreds of miles in one night as others have said a battery in good nick will be fine. The original Lucas Graves bulbs were larger dia brass caps. I think they were Bosch fittings. My reflectors were resilvered ( NOT nickel or chrome!)