I use an Azur ThumII 1000 lumen as the “high beam”. Purchased at www.pushys.com.au at $70 it really is the best value high powered light available.
The tiny (50 g) but powerful (5W) lamp is mounted on my helmet. The perspective makes it look huge in the photo but it is actually only about 25 mm (1") diameter.
I carry the battery in a mobile phone arm band mount. I originally had it in my shirt pocket but it moved about too much.
3.7 V, 16 Whr Lithium Ion battery (weighs 150 grams)
Automatic charging from USB with charging/completed indicator (6 - 8 hrs)
Four brightness settings (10%, 30%, 70%, 100%)
3 hrs to 30 hrs run time.
Only the charger lead is supplied but any USB power supply works fine.
Connection is via a 2.5 mm DC plug so it is very robust.
This is a very bight, white, tightly focussed light. The helmet mount is very good and allows it to be aimed easily. In areas with street lighting I run it on level 2 and on full power in total darkness.
However I found I also needed another lamp to light the area right in front of the uni. I contemplated buying a second ThumII to mount on the uni but decided against it because I wanted something in a single unit without the connecting lead.
My “low beam” is a Lezyne XL 700 lumen lamp. I used its handlebar mount to fit onto a bracket salvaged from an old bike lamp. The Leyzne handlebar bracket clamps around the blue part on the old clamp.
I has three steady settings and a flash/steady combo. I use the lowest steady settting which is 175 lumens. This level will run for over five hours and provides plenty of light for the near field.
I chose it partly because it was described in a review as having a relatively wide beam which is better for a short range light. It is considerably yellow-er light colour than the ThumII. The colour contrast was odd at first but after some time my perception reduced the difference.
I got a really good deal on the Leyzne “fully loaded” pack. The main useful component is the extra battery but there is also a helmet mount in the pack. It was on sale for ten dollars less than the price of a standard Leyzne XL 600 lumen at Pushys. I don’t think the fully loaded pack is a great seller so I doubt they would stock it again.
I originally mounted it right up close to the seat but found it shone into my eyes when mounting. I moved it further down and that fixed the problem. It has come out of its slide mount a few times in heavy UPDs but is really pretty solid. It could be supported with a rubber band cut from an inner tube.
The tail light came from a charity shop for a dollar. It has four settings with steady or different flashing patterns. Being long and thin it is excellent for a unicycle. The block of rubber between it and the seat post clamp stabilises it.
The other device is my video camera. It was $39.95 on special from Australia Post shop. Notice its mounting is a Minoura water bottle cage clamp mount. Beautifully made in stainless steel and very versatile with diameter and angle adjustments. Perfect start for adding frame or seat post mounted accessories to a uni.
BTW Pushys is the best online shop I have ever used, right from the website experience through to the delivery and after sales customer service.