TRELOCK LS760 I-GO VISION FRONT LIGHT
177g (including lamp and bracket) USB cables 11g each €129.99 (about £117 at the time of writing)
Munster based Trelock’s LS760 I-Go Vision front light is a powerful rechargeable. Price is comparable, though at the upper end of the bracket, to lights of similar brightness. However, it has some very distinct design features. There’s been a good deal of chat about these but, on the whole, I rather like them.
Pros: Above average run-times, helpful design features.
Cons: Rechargeable batteries are not replaceable, toward top-end of price range.
Lux and Lumens
100 lux is a lot of light on the road in front of you. Most manufacturers rate light output in lumens. Fundamentally lumens describe the total amount of light visible to the human eye from a light source. Lux measures the amount of light directed on to metre squared; 100 lux is equal to 100 lumen/m2.
Practically, Trelock’s LS760 I-GO Vision gives, on highest mode, around the same light as Moon’s Meteor Storm Pro (1000 lumen mode) and a rather more than Moon’s discontinued LX760 at full whack. Think Xeccon’s Spear 900.
Torch type lights seem to have been getting slimmer and slimmer in recent years. Trelock buck the trend. The LS760 is chunkier with a broad sloping lens cover. This has enabled the inclusion of a large LCD display panel and two finger-tip sized operating buttons. Control buttons are simply marked with plus and minus signs. Various combinations switch off and on, switch between various strengths of light, set the time, and set up the, as far as I am aware, unique, levelling system.
The latter is to ensure compliance with Germany’s notoriously precise laws on cycle lights, but is applicable anywhere when you want to avoid dazzling on-coming traffic. When at the proper angle, it is indicated on the LCD display. Similarly, five levels of light, battery life in the current mode, charging status etc are also clearly shown, both in numbers and symbols.
A lithium-ion battery is encased in a strong plastic shell, with aluminium cooling fins above the lamp. “Splash-proof” construction is intended to withstand rain, but don’t take it underwater.
Trelock’s rechargeable batteries are permanently installed. However, the manufacturers suggest 800 recharges as a minimum expectation, so it won’t owe you much by the time the vital spark burns out.
The charging jack is covered by a snug-fitting rubberised plug
A single LED, designed to manage 25000 hours, and efficient reflector system are designed to provide a clear, well-defined beam, suitable for road, commuting, and maybe some gentle gravel work.
Phone need a charge? Well, the LS760 has a power-bank function. 20% minimum charge is required, but it could prove vital, or even just convenient, in an emergency or when the urge to extend the commute means you’ll be missed at home.
USB charging and power-bank cables are included on the pack, along with a helpful instruction manual – in German and English.
A tool free bar mount is included. Watch-strap adjustment should fit any circumference from 22-35mm. A fork bracket is available for those who prefer that, though changing modes on the fly might prove rather problematic given the lack of a remote control. The lamp clicks into place and is removed by depressing a button. All pretty intuitive.
Levelling the mount is really easy. Once on levelling mode, line up the dashes and you’re there. This works pretty well, conforming to German traffic law and practically keeping good relations with on-coming vehicles.
The bracket allows the light to be swivelled to focus to the left or right, or, of course, straight-ahead.
Charge and run times
Giving the battery a full charge before first use took just over four hours from absolute zero. On “indicator” empty when the safety reserve still operates, expect about three hours on the mains.
Run times are very much as stated and, more importantly, as shown on the LCD display. Fundamentally they run from nine hours at level one to two hours at level five. Of course, things are not quite that simple. Level five power causes the casing to get toasty very quickly. Automatic kick-down tales place to preserve the LED. Sitting on the test desk this occurred after some ten minutes at Level Five. However, riding a bike is not done on a test bench. In reality expect double that.
On that front, there’s no memory function, so the light doesn’t return to the setting after kick down or being turned off.
There’s a lengthy delay between the display showing empty and being plunged into darkness.
Level one gives enough presence for brightly lit areas, though amongst heavier traffic I tended to aim for Level two, for greater presence. Mind you, going higher should not be a problem. Level three has become default. Shoving it up to 4 or 5 for unlit country lanes at a fifteen to twenty mph.
The higher modes come into their own on narrow canal towpath trips home after an evening out, or on faster country lane bursts. I’ve even taken on a few forest roads with confidence, but gently.
The core beam lights the road up to around 25 metres ahead (above), in all modes. Flagrant disregard for Teutonic cycle lighting regulations can get a good clear light to around forty metres (below). Careful manipulation in flight allows the light to be dipped and raised whilst remaining fundamentally secure.
Yes, you can illuminate something 120m ahead, but that’s reading a road sign or something like that. Equally, the manufacturer’s claim that the light can be seen from 6500m away, is only likely to come into play – or even be tested – in the most dire of circumstances or on dark desert highway.
There’s very useful bleed to the sides through lengthy slits, adding to presence at junctions.
Ease of Use
Frankly, this is really easy. Even the clumsiest, gloved-up cyclist – that’s me – can’t miss the buttons. Just be careful not to spoil your lovely levelling. It fits all bar circumferences.
On that front, I’ve found the bracket very secure. It’s simple enough, but there’s a little bit of a knack to fitting the lamp to it. There was no rattle on the rougher sections of road and track.
Emergency situations or an unlucky puncture just outside the pub on the way home may require a quick boost to the mobile. The powerbank function works well for a quick boost. Attempting to charge my iPhone was slow progress – fifteen percent using twenty percent of the light’s charge. On the other hand, no problem sending a few texts and a phone or two.
Just bear in mind, whatever device you are trying to charge, you’ll need the USB cable for it. Trelock provide a cable from the light‘s jack with a USB port at the other end.
A good light with decent run times for urban and semi-urban commuting, with potential for excursions along unlit lanes, towpaths, and tracks. Price-wise, you’d expect a lot for £117ish, but there are some distinct differences to lights in a similar price bracket.