New Moto Guzzi Door Mats Available Now
One thing I've noticed about some LED replacements for 1157s (taillight bulbs) is that the bright part of the beam is incredibly narrow. They also don't throw light back to the reflector of the tail light so someone behind sees a bright spot (if they are in the beam) rather than the whole tail light light up. I installed a bright 1157 replacement and a friend following me couldn't see it - she was below the beam. Maybe the newer ones are better, but I recently installed LED replacements for the original festoon bulbs (think VW bug dome light) in the bacon slicer. They were very bright, but beam was so narrow that they didn't light up the whole taillight and there was very little difference between running and brake lights.The LED headlight bulb was a much better design that utilized the reflector to distribute the beam.It is worth checking the beam side to side - especially on tail lights.
Good tip Chuck, lots more LEDs and around the sides. The 2 I tried both had all the LEDs pointing aft.
If you're sticking with the original Lario headlight, then that locks you into an LED bulb. I've tried a few different ones: no name off of Amazon ($13), "Safego" also from Amazon ($19), ADVmonster Native H4 ($45) and now it's replacement the H4R2 ($50) http://stores.advmonster.com/native-h4r2/. All of them have been much brighter than the halogen they replaced while using much less power. The Native H4 was the best of the bunch, the Native H4R2 is in my V700, but I haven't had it out at night yet to see how the beam spread is with the Hella headlight. That's the thing - the bulb is only a part of the equation - it may or may not be compatible with the reflector and lens. It's not uncommon to have a narrow beam, bright and dark spots. But, if your primary concern is less load on the electrical system, then just about any would do. In that case the Safego would probably be my choice. https://www.amazon.com/gp/product/B01C1AOSVS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Some non-Guzzi content here. When I restored my boat 15 years ago, the hot ticket for marine lighting was xenon fixtures. Fast forward to today, all new marine light fixtures are LEDs. I was able to replace all the xenon bulbs in my vessel with replacement LED emitters. My house battery bank thanked me...Larry
Out of touch codger that I am, I didn't know about LED H4 replacement emitters. A longstanding complaint of mine is that bikes have their headlights on all the time, since '78 or so. Not going to spend the $$ on a Euro spec handlebar switch. So I sprung for the ADVmonster H4R2. What you said about the light pattern changing piqued my interest. Before changing the bulb, I put my bike on the centerstand, and placed a large piece of cardboard in front of the bike about 6' away. I then turned on the bike, and traced the pattern of the beam on the cardboard with a Sharpie. Did the same for the high beam. Then I switched out the bulb. The emitter didn't fit at first. Some judicious trimming of the bulb socket with a straight carbide burr tip in my trusty Dremel gave the emitter the clearance that it needed. Checked the beam patterns against my halogen bulb, the high beam pattern was the same, albeit much brighter. The low beam was pretty much the same, but somewhat wider. Can't wait til dark tonight, see what it looks like on the road. Happiness is cheap today at $57!Some non-Guzzi content here. When I restored my boat 15 years ago, the hot ticket for marine lighting was xenon fixtures. Fast forward to today, all new marine light fixtures are LEDs. I was able to replace all the xenon bulbs in my vessel with replacement LED emitters. My house battery bank thanked me...Larry
Thanks for the info/ your experience on the LED headlight bulbs, Charlie. I just bought the Native H4R2 for my Eldorado. Its about time they came out with a bulb that will fit in our "limited space housings". I am still running the stock Bosch generator, so I think this will work out well.Rick.
I am currently looking on AliExpress at LED headlight bulbs. I know the quality would be 'orrible but a twinpack delivered to NZ for about $16NZ is doable for a trial.
I just put a pair of 6 volt 1154 tail light bulbs in my XL125 and F7 175, you can now see the tail light in the daylight and very bright stop lights. i'm a happy guy. I just hope they can hold up to the vibration. Is there a 6" replacement 6 volt headlight? Found a couple but they where north of $400.https://www.ledlight.com/g18-s25-2_6-watt-1157-6-volt-ac-non-polarity.aspx
I've never had any luck with a LED bulb replacement for my headlights. If you do find something that works, I'm all ears!