User Review 2: ITUO Wiz20 bike light
I received for review the latest twin LED wireless bike light from ITUO. The WIZ20 has twin XM-L2 U3 neutral white LED, user programmable modes, internal replaceable 18650 batteries, USB chargeable capability and QR bar mount.
What's in the box
Initial overview and feel:
I was surprised by its relatively slim look and relatively light weight, which did not detract from a feeling of quality. *
Checked weight including two ITUO 3100mAh is 246gr plus QR clamp at 34gr giving a respectable total of 280gr.
The overall shape is rectangular with a slightly wider head and the body is tapered towards the back of the light were the battery loading door is. When you look closely at the light the shape is quite complex with the underneath rounded and the top squared up. The fatter head curves very gently towards the body which allows your thumb to be positioned on the curve giving a very good hand grip once used off the bike.
The rear loading door is made of aluminium and is released by an upper plastic catch fitted on the main body. The door itself has a rubber 'o' ring and sports a small PCB with spring loaded terminals. The connection inside the battery tube are made by springs, so there is no chance of battery rattle.
At the opposite end of the light are the two XM-L2 U3 LEDs behind two clear optics (I understand from the manufacturer that they are at 10 degrees).
The bezel is silver, quite deep and slightly hooded on the top and is held by a couple of Hex screws. Hex screws are also used to retain the switch which is positioned on the top and to retain the male section of the QR clamp underneath the light.*
The USB port is forward of the bracket and has a double lip rubber cover, so no risk of water ingress.
The cooling fins are very minimal and found on the head and underneath rear sections of the body. The head and body are one single cast with only the bezel and the rear door as separate parts.
Using the single casting for head and body should help in heat transfer and heat dissipation.
This was well proven during the run test as the whole body warmed up which has two positive results, namely good heat dissipation and during the cold winter months, keeping the battery at a good operational temperature. *
he switch protrudes from the body of the light (around 1.5mm) and has a positive feel so this should be OK to use with gloves.
The battery condition light is showing through the switch with a blue light for 100%-20% and red 20% or less.
During my two tests, the blue light stayed for 85 to 105mn according to battery used and the red for 60 to 80mn again according to the battery used.
With only two colours the low battery system is a little basic but works fine giving you a warning in excess of 60mn continuous run time on high mode.
The laser branding is quite minimal and is on the left hand side of the light. The light operation is similar to their WIZ1&2, but the WIZ20 comes with two separate mode platforms which are fully programmable.
A USB cable is supplied as well as an A4 comprehensive instruction leaflet. The light is well package and protected in a high quality cardboard box.
The QR clamp is made of durable plastic with a metal clamp bolt and wheel nut. The designed looked rugged to me but not bulky with a checked weight of 34gr
The light quick release lever has a positive locating feel and hold the lamp in place without rattling.
Manufacturer Data (Direct from ITUO user manual)
Two Cree XM-L2 U3 neutral white led
Maximum output 1500 lumens
Battery power indication
Battery reverse polarity protection*
High quality aerospace-grade aluminum alloy
Military standard type III hard anodizing finish
Water and rain resistant ( IPX 6 waterproof)
25.4-35mm handlebars mount
Uses two 3.7V 18650 Li-ion battery
Lenght 118mm, width 50mm, height 26mm,
Light weight 154g and mount weight 35gr
Two Default Settings
3 steady modes: low 250 lumens (14 hrs) - med 800 lumens (4:30 hrs) - high 1500 lumens (2:10 hrs)
1 hidden special mode: dim 80 lumens (40 hrs)
2 steady modes: low 400 lumens (8 hrs) - high 1000 lumens (3:30 hrs)
1 hidden special mode: warning flash
As mentioned above, the light has a multitude of settings with two main default platforms. The first is accessible from the off position by using a single click which gives you access to three different steady modes with an additional hidden/special mode on exit . (For me this is more of a commute/road platform when light brightness is often changed due to different lighting and road conditions.)
The second platform is accessible from the off position by a double click and gives you access this time to two different steady modes, again with an additional hidden/special mode on exit. (For me this is for MTB , ie low on wide trails and high on technical or fast trails.)
All the steady modes are output programmable 10-100% with a double click. The two hidden/special modes are programmable again by a double click to access an extra low, a twin flash, a single flash and a steady mode with a pulse. **
Another good feature is that both platform steady modes have a memory (after a stop and turn off, when you power on again you don't have to cycle through all the modes to get to the one you was just using).
More details from ITUO user manual
CLICK: quick press of the switch less than 1 second
DOUBLE CLICK: two rapid clicks of the switch
PRESS: 2 seconds press of the switch
LONG PRESS: 3+ seconds press of the switch
The Two Default Setting
. A CLICK from the OFF position will always turn the light on to the last steady mode used in the default setting 1. A further CLICK from the ON position will cycle through the steady modes low, med, high. A PRESS from ON position will access the special mode-dim 80 lumens. A CLICK from the special mode position will return the light to the last steady mode used. A LONG PRESS will turn the light off (it will go through the special mode).
. A DOUBLE CLICK from OFF position will always turn the light on to the last steady mode used in the default setting 2. A CLICK from the ON position will cycle through the steady modes low, high. A PRESS from ON position will access the special mode-warning flash. A CLICK from the special mode position will return the light to the last steady mode used. A LONG PRESS will turn the light off (it will go through the special mode).
. The light as a memory and will remember the last steady mode used when the light is turned off.
Steady modes brightness customisation
1. Switch the light to the steady mode you want to adjust
2. DOUBLE CLICK, the light will flash quickly indicating you can start customisation.
3. Increase the brightness in 10% increments using a CLICK (when 100% brightness is reached the light will flash quickly); dim the brightness by HOLDING the switch. DOUBLE CLICK to set the desired brightness while ramping up or down the brightness levels.
4. Once the desired brightness has been set, CLICK to return to normal operation.
Special Mode Customisation
1. When in special mode, DOUBLE CLICK the switch. The light will flash quickly indicating you can select the special mode you prefer.
2. Using a click to cycle through the four special modes (dim, day flash, night flash and warning flash). DOUBLE CLICK to set the desired special mode.
3. Once the desired special mode has been reached, CLICK to return to normal operation.
When the light is off, LONG PRESS the switch for 5 seconds, the light will flash 10 times and then turn off. This indicates factory settings have been restored.
Riding with the WIZ
I have been riding with it for over a couple of weeks now during my daily commute. So for the moment I've only tried the WIZ20 on the road and on a farm track when I took some beam shots.
The beam has a nice neutral tint and is pretty tight but with still enough peripheral lighting. Some riders may prefer a wider beam for a bar light, but *for my daily commute this was fine with a strong patch of light straight ahead and decent enough sub lighting on the kerb. I still have to try it during a forest single track or an XC ride, so will add to the review later on.
I understand from ITUO that on the sample sent to me, the optics are standard commercial 15 degrees optics. I believe that they can be easily changed if a wider beam is required .
The switching was fine with my autumn gloves and the fitting and removal from the handle bar clamp easy. The fit is tight with no rattling from the clamp to light. The clamp fits tightly on 24mm or 35mm bars as this was tried on my two bikes. We've recently had lots of heavy rain here in the UK and the light was also fully tested in windy and wet conditions. No problems here.
Like with the WIZ1&2, I have been using their twin flash mode during the day and warning flash or low mode at night. With the tests I did, the warning flash was coming with the same brightness as their low mode (250L with a pulse of around 350L (estimated)).
This is a good feature and allows you to see as well as being seen. I only use the warning flash on lit up roads, as on a dark roads, I fine the pulse a little tiring on my eyes.
his is on LOW mode around 250 lumens, light roughly pointing towards traffic and photo taken at about 50 yards
Something you have to be aware of is that this is an extremely powerful light and you do not want to cycle through traffic with the 1500 lumens on. I ride on the road on low when there is traffic around and I have the WIZ20 angled down to get the centre of the beam approximately at 4/5 yards ahead of my front wheel. This gives plenty of useable light and minimises some of the glare to oncoming traffic. I would advise anyone using any high powerful bike light on the road to prop your bike on a kerb and walk 25 to 55 yards ahead and look at the beam. You will be surprised how unfriendly they are if not adjusted properly.
Of course once off road you can let it rip :-)
For commuting, as you can see the light point down
MTB test to follow
The reviewed lights are tested with my home made light sphere/light box and a cooling fan is used between the readings (please note there will be a small margin of error for the readings as the light is removed and repositioned on the sphere for the various readings). As this is a home-made integration sphere, I cannot make any true claims as how close my result would be to results coming out of a lab integrating sphere costing thousand of pounds, but this does give a rough idea as how the light performed and enables you to monitor the output versus runtime.
The first test reading was taken 30s after initial turn on as per MTBR testing method and in line with ANSI method. *
The time when the battery condition light is on red is showed on the table
As you can see from my test the PLUZPOWER 3400mAh batteries give a slightly lower output for the first 60mn but a higher one for the reminder of the runtime a good alternative to Ituo 3100mAh battery.
SIDE VIEW OF THE BEAM, WITH 15 DEGREE SUPPLIED OPTICS
VIEW OF THE BEAM, WITH 15 DEGREE SUPPLIED OPTICS
The beams photos below were taken using a Canon Powershotsx110is with the same setting as the MTBR reviews so you can make comparisons:
Setting: Full manual
Exposure: 1.6 seconds
White Balance: Daylight
Quality: Jpeg High
REFLECTIVE OBJECT IS ABOUT 25 YARD AWAY
REFLECTIVE OBJECT IS ABOUT 25 YARD AWAY
THE TREE AND FENCE IN THE DISTANCE ARE ABOUT 50 YARDS AWAY
10% increments beam shots
Please note my figures are in LUX and the base figure used was taken 30second after turn on.
What the test does show (confirmed by the photos) is that some of the mid range increases are not around 10% but a lot less. I became curious to see what sort of result I would get from my Gloworm X2 which has a similar program and did cost more than twice as much. The X2 figures were closer, this said , the ITUO still has a very good incremental customization program which for me is a big plus.
Please be aware that this test has not been done to confirm the actual Lumen output but has been done to get an idea of the actual incremental increase of the light output in LUX.
This, with the photos can help the reader to set their custom light output/ maximum battery running time, by carefully choosing the incremental levels.
FIGURES IN RED ON THE PHOTOS ARE THE % AND LUMEN GIVEN BY THE MANUFACTURER
I don't have any means to confirm the 1500L claimed output for the WIZ20 but on my home made integration sphere/light box
the average LUX readings I am getting from my 1500L GLOWORM X2 are 848 000LUX and I am getting 808 000LUX out of my WIZ20 so I recon the WIZ20 is pretty close to the 1500 lumens advertised!
The light out of the GLOWORM X2 is also whiter than the WIZ20, below is a photo taken of the X2 beam, on the same night and with the same ITUO 3100mAh batteries in the CB SEEN twin battery box .
The beam is a little different due to the different optics used in the two lights and unfortunately for the X2, slightly angled towards the left of the photo, this was noticed when I viewed the photos on my computer.
Please note, per all reviews some of the Fors and Against are down to the reviewer's personal preferences.
For: compact and fairly light weight, good QR clamp, USB rechargeable, replaceable standard 18650 batteries, long run time, good choice of modes and fully programmable, good beam and interchangeable optics, price.
Against: PWM on low and residual on medium (not visible by human eye but apparent on some of my filming), battery tubes OD does not allow for much bigger batteries (my PLUSPOWER 3500mAh are too tight to fit)
Despite the fact that this is a bike light, the WIZ20 feels well balanced in my hand and I can see myself using this around the house or while camping and it can tail stand for candle lighting.
ITUO WIZ20 with its fully adjustable modes, raw power, replaceable and USB chargeable 18650 battery (not supplied) make a very good contender for both road and off road use. MSRP $109.99*.
* (current price on the review was obtained from Ituo website on the 13 Dec 2015)
Readers, please note that I have received the WIZ20 from ITUO as a review sample and, as such, did not have to pay for it.
The WIZ20 was supplied FOC by ITUO: www.ituoworld.com - UK agent Bright Bike Lights | Lights for Mountain Biking, Running and Orienteering
The ITUO 3100mAh 18650 batteries were from previous review of the WIZ2 and were also supplied FOC ITUO: www.ituoworld.com
The PLUZPOWER 3200, 3400, 3500mAh 18650 batteries used also for the review were supplied FOC by Multicorepc/Pluz.co.uk Pluz UK
There is another MTBR review of the ITUO WIZ20 and I would encourage any readers to also read Tigris99 excellent review.
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