AyUp is a very rare species on our geographical widths- maybe, because producer is located down under in Australia ;). Apparently somebody saw the local distributor on British Islands, but I would not expect too much from them.
What did Ausies invent ? One of the most versatile lighting system among currently available on the market - with a few different holders, the same lamp can serve as a bicycle lamp, the light on a helmet and the headlamp and all this while maintaining minimum weight.
Some marketing data
Head weight : 58 g (real 58 g)
Light Source : Cree XR-E LED
Light output : 300+ lumens
Available optics : narrow, intermediate, medium
Power consumption : about 500mA, 5-8,4V
Driver : resistor based
Waterproofing : IP 67 - Immersion - 1 meter.
Available Li-Pol battery packs :
3 hours - 7,4V 1250 mAh - 82,5 g (real 95g witch pouch)
6 hours - 7,4V 2600 mAh - 136,5 g (real 158g witch pouch)
Charger : 2 channel AC adaptor/car 12V
Mounts : handlebar, helmet, headband
Price : MTB Kit - 400 AUD (330 USD AT current exchange rate).
Producer website : http://www.ayup-lights.com/
Lamps are very solid, and despite twisting the heads on all sides, somehow they do not want to separate from the bracket. The same head is light and small that it fits easily in the hand. The design allows you to set heads at different angles relative to each other in order to better illuminate the road. Headlamp built on the included headband and a small battery pack weighs 208g, which is quite reasonably.
I get in my hands Royal Blue set, but there are 12 colors to choose from :).
Cells are packed in plastic cases and these are wrapped in neoprene pouches that prevents bumping and enable fastening with Velcro strap. Given the capacity and weight of the cells, the manufacturer did not exaggerated too much on the amount of plastic in packaging. Sadly, there are well glued and any inside look is impossible without the devastation of the container.
We are getting three lithium-polymer 7,4V battery packs - 2x 1250 and 1x 2600 mAh, in accordance with the stated average current consumption of 500mA they should be sufficient for 2.5 and 5.2 hours - when the producer declares the minimum burn time of 3 and 6 hours. In practice, the battery protection system shuts off the power after about 4 and 8 hours, which means that current consumption is significantly lower than declared. Lights in the test are only 1 mode (there should be 3 mode version available soon) - switch is located on the battery and there is no problem with locating it or feel it whether you want switch on/off the light..
V-in I-In P-In
5,241V 6,18mA 0,03W
6,306V 87,22mA 0,55W
7,280V 222,98mA 1,62W
8,267V 346,52mA 2,86W
Well, sometimes 350 is about to be 500 :-P. Due to the limitation of current through resistor, current is dependent on the LED Vf - and this parameter even in the same batch may vary considerably, so declared the parameters are in the case of the tested device far-fetched, but are not impossible to obtain in another series.
Using of a standard DC power connector 2.1 / 5.5 mm allows usage of the large capacity alternative power sources, for example, Li-Ion battery pack 7.4 V, 5.2 Ah (2x2x18650 - about 210g without packaging). With that kind of battery pack you have enough power for the whole 24h racing event :). You want to have the switch on handlebar ? Here you go, the standard switch from the Sigma Mirage fits perfectly :-).
How it light ?
Knowing the current and type of the led it is quite easy to predict the amount of the light - 200 lumens per lamp from the leds, the rest depends on the quality of used optics. 200 lumens is more than we get from the 15W halogen lamp and in practice it is a sufficient to ride / run in unfamiliar terrain. When you are using both lamps at once, you have enough light almost for everything. Intermediate lamp lights up the road before the bike very well and the narrow one provides a pretty good range to look around for the points / paths.
AyUp with narrow optics vs DIY 2xCree Q5 @ 350mA
AyUp with intermediate optics vs DIY 2xCree Q5 @ 350mA
Pros : simplicity, versatility, reliability, enough light output
Cons : the amount of light contrary to the specification
If you are looking for a brand new set of lighting that checks in battle, and you realize that you may not get exactly what the commercials says, it is a set worth of interest. 400 + lumens is sufficient for any trip into the unknown - the truth is that declared 600 + will be better, but there is nothing to be done... It is hard to jump over some amount of light with the lightweight batteries and retaining the long burn time.
Practice ... For more than a year they have been used and abused by the Speleo Salomon Adventure Racing Team and yet they neither broke anything nor anybody curse these lamps. So they can be considered as thoroughly tested under all conditions :).