UV Handlebar Light
Bike lights have improved in brightness but they tend to focus on just lighting the cyclists path. This single point of light makes it difficult for other road users to determine speed and direction of the rider, especially when the bike is coming directly at them.
The solution is to give other road users more reference points by highlighting the cyclist to create a more visible size and shape.
This isn't really a make so much as a purchase and attach. Total time is under 2 minutes and cost was less than £10. I've seen similar solutions that use a standard torch but that just seems like a stupid way to ruin your night-vision.
## Update: Due to concerns raised about the safety of UV light at either high levels or with prolonged exposure I recommend that you review all guidelines and safety instructions on any UV equipment you purchase. ##
Buy a UV Lamp
Find a bright UV lamp on the Internet. I've bought a couple of Ultrafire CREE LED flashlights in the past and have been happy with them so opted to the 3 watt UV version (cost of about £8).
## Update: Due to concerns raised about the safety of UV light at either high levels or with prolonged exposure I recommend that you review all guidelines and safety instructions on any UV equipment you purchase. ##
That's the hard part over now you have to sit back and wait for it to arrive. If it doesn't already come with a handlebar mount then have a shop around for a cheap clamp (cost £1).
When it all arrives simply mount the UV lamp on the handlebars in the same way as a normal front facing light, just pointing backwards.
note: my Monkeylectric light illuminating the front wheel in purple.
Wear Something Florescent
As we all know florescent material will 'glow' under UV light, like something from an 80's dance floor. So grab your florescent jacket and that's it; head out for a night time ride.
You'll need to play with the angle of the beam to light enough of you but without it pointing directly in you face as unless you are wearing novelty spectacles it's wasting the light. Not that it matters as it doesn't interfere with your night vision.
I found an added bonus is the reflected light from my jacket illuminates my cycle computer so I can see my speed and read my map.