Monkey Light M204 A15 Bike Wheel Light - 40 Lumen with 4 Ultrabright Full-Color LEDs - Bike Wheel Tire Spoke Light Accessory - Waterproof Ultra-Durable

I commute 5 days a week about 12 miles per day mostly by bike path. I have been doing this for 9 years. I live in the Seattle area, so half the year my evening commute is in the dark, often with rain. I mounted the light on my front wheel about a month ago (February). I use the rainbow mode where the light cycles through various color modes.Pros:Appears to be water proof.Rugged so far, no problems with durability.It is quite bright at night, even in the rain.The rainbow mode is highly unusual compared to other lights drivers have to sort through at night.I feel (but have not measured) that drivers give me significantly more leeway with these lights. They seem to notice me earlier... There are fewer panicked close calls with drivers at intersections.They are less distracting to me than I originally feared.They did not imbalance my wheel noticeably. I have fairly heavy wheels and tires... Not sure if this would be the same on a light racing wheel.Cons:The wire has to be run along a spoke... Hopefully it will never come loose and wrap up in my front spokes during a ride.The light doesn't make a continuous ring like the picture shows. It's more like what you would expect... You see a little light spinning around the wheel with a bit of a light trail.Not sure about battery life... Haven't replaced them yet.Summary:Best lights for side visibility, an often overlooked safety angle. I would definitely recommend these lights.

I ordered this for added viability during night/twilight commuting. This company offers a few lights (their website is helpful for comparing features). Ultimately I chose the A15 because it is the only one that features auto on/off. I already have a headlight and tail light, and didn't want to have to manually start more lights before heading out in the morning. However, I was concerned that the light output would be minimal - it is rated at 40 lumens (the company offers much brighter ones). Happy to report that the light is surprisingly bright, particularly in the blue-green-white range, and is made more noticeable by its rapid revolutions while riding. It's fun too - I currently have mine set to change colors based on speed (red -> orange -> yellow -> green -> blue -> white), so it encourages me to keep riding fast. I just bought one and it's on the front wheel. Both wheels have spoke reflectors, and the light and reflectors seem to complement each other. Installation took a little longer than expected but there are good paper instructions included in the package and an even better installation video online (google for it). Ample supplies are provided in the package to help with installation on different wheel types. I messed up the zip ties a few times but fortunately they provided more than enough. The spokes on my wheel are widely spaced (more widely spaced than the light itself), but the installation video had good recommendations for installing in this scenario. The light itself seems high quality - the company seems to have a good 2 year warranty and I could believe that the light will hold up for at least this long - hope it does!

I've been riding a bike to work every day without fail for at least the past 5 years, and on and off before that. I am convinced that some kind of spoke light is a necessity for any after-dark riding. I've previously tried the  Spokelit-style lights , a  knockoff LED spoke light , and  LED valve caps . The MonkeyLectric 40 is the best spoke light I've been able to find so far, although there are a few improvements that could be made.What I like:1) Build quality (mostly, see below). The parts all seem rugged, with no weak points that could break.2) Brightness. I was worried that only 4 LEDs would not be enough, and spent quite a bit of time deciding between this one and the 8 LED version. In the end, I wanted a smaller light on my spokes so went with the M204. I didn't need to worry; this light is so bright it lights up the ground around my front tire as I ride. Super visible. Provides more light than any other spoke light I've used. It's bright enough that you really only need one.3) Battery life. I changed the batteries *once* this season (I only use them during my evening ride, and only from October-ish to March-ish). With the cheap LED knockoff I had to swap batteries once every few days. The valve caps lasted maybe 3 weeks. The Spokelit-type lights performed better, but take watch batteries and throw much less light.4) On-off switch. Both the valve caps and the LED knockoff came on "automatically". The valve caps came on whenever moving. The LED knockoff supposedly only came on in low light and when moving, but was unreliable (usually ran whenever moving). This caused frequent battery changes.5) Simple control of lighting color and pattern. The LED knockoff didn't have a selector switch. The colors for the M204 are quite nice looking, and I like the ability to pick an LED color that matches the rest of my bike.6) No issues with rain/water. Rode this light through some serious El Nino rainstorms this year with zero problems.Here's what I wish could be improved in future models:1) Terrible fastening system. First off, mounting is kind of a pain. The spoke mount isn't bad, but I succeeded in jamming my hand into my spokes hard enough to draw blood when trying to get a tight fit on the hub-mounted battery pack (pulled on it with needle-nose pliers, which slipped, of course). I get that zip ties probably a) make the product cheaper to produce and b) provide much stronger fastening than other spoke-mounted systems (usually either simple "tension" from the spokes or a plastic screw), but it makes it near impossible to easily remove the light. In concession to this fact, MonkeyLectric provides a metal band that you can use to add security, but I actually don't *want* more security, I want to be able to move the light quickly, either to swap to another bike that I might ride that day or to remove because I don't plan on using it. All my other lights have quick-release systems that make this possible -- I would actually be happy enough with some kind of screw/allen wrench mounting system for the light and the battery pack (much like the ones you see on rear light mounts), no need for a quick release, although I expect it would be possible (e.g., the Planet Bike quick cam release system they use on their lights). Heck, I would even be OK with the stretchy band type system you see shipping with super cheap bike lights. That said, the removal wouldn't be such a big deal except:2) This lighting system is really unfortunate looking. Even though my bike is a commuter, I've spent a little bit of time making it look nice. I wasn't happy about zip-tying a big honking battery pack to my hub. The problem here is really with the battery pack -- I actually don't mind the looks of the light itself, it would have been nice if there was a way to incorporate the battery into the light somehow. Looks like they did this with previous versions but stopped -- I'm guessing it was to standardize the battery pack, giving it the ability to store more battery power and make it work with more of their product line. I would've traded the battery life for a nicer looking solution (ideally, integrated into the light, but would even be ok with a short wire to a spoke mounted battery pack). I'd also prefer to have it take just one battery instead of three for weight and appearance. As is, I'll probably be removing this at the end of every season. I'll then have to remount it each year, and also not get to use it those rare times I'm out after dark past the daylight savings switchover. My other lighting mounts stay on my bike year-round (often, though not always, with the lights still in them). Additionally, I'd *love* to run two of these (back and front), but due to the mounting system and looks I don't really want two of these on my bike.3) Other battery system annoyances. The battery pack has two plugs so you can expand your system later. Cool! Unless you choose to stick with one light. Then you have an empty plug that just flopping around of the back of your battery pack. I attempted to tape this down with electrical tape, but it's difficult to make that stick (particularly during the rainy season). Would've preferred removable plugs, so I could take the one I'm not using out although I expect this would add to the cost of the unit (you'd probably also need a cover to prevent gunk from getting in). The other problem with the battery pack is that it often slips around the hub (since the mounting system makes it difficult to get it tight). This increases the slack in the wire, sometimes to the point where it periodically slaps against some of the spokes, making an unpleasant 'tink tink tink' sound while you're riding.Overall, I really like this light. I actually bought another as a gift, and will advise others to purchase this brand. Hoping in the future they'll be able to add in some of the features I mentioned.

A little tricky to fit - black zip ties were ok, but the stainless steel/security one, quite poor - very difficult to use, and will deter sticky fingers but not real thieves who can cut all of the zip ties in seconds. There are more secure zip ties on the market which would give you greater peace of mind. As one review noted, you don't get the same effect as all the pictures & youtube videos are promoting - I am glad I saw that video before I bought these as I would have been a little disappointed - so many thanks for that review. I like these lights, they do add an extra feature to make you more visible on the roads which can only be a good thing. I like the choice of colours and themes. I don't like that they have to be left on the bike as they are not cheap lights however, the Monkey Light Pro's which seems to work really well and as good as the youtube videos suggested they do, is currently on Amazon for £800. It seems you get what you pay for. I would recommend these only as a back-up option or as a novelty. I've only had these a short while so will be happy to edit my review if my opinion changes in the next few weeks.

I think I bought the bottom of the range unit so it has limited options/variations for the LED colour/pattern, but the LED's are bright and can be seen well in the darkPositives:Arrived quickly; Really easy to fit (good YouTube videos if required); Bright LED's; "fun" safety/lighting optionNegatives:I'm not sure whether it really looks like the images except when the bike is on a stand and the wheel is spun really quickly (hence only 4 stars). I have ridden at 35-40 kph with it mounted on my single-speed rear wheel and although it's hard to tell when you're on the bike , it doesn't seem to look like a solid ring of light as per the ads, but this may just be the angle I am looking at it from. I think it would be improved if there were 2 LED's sources on opposite sides of the wheel this would then look better even at low speeds.Having said that I'm happy enough, just be aware that the picture is not necessarily what it will look like when you ride your bike...

I highly recommend these LED lights.They are well made and very bright.They are 100% waterproof.They are also a lifesaver for people who regularly use a bicycle.These lights have saved my life several times from traffic which come from the side roads !What I find with these lights,you really need to install 2-sets on one wheel to get the effect you need.They use very little battery power.They are very easy to use.Definitely a five-star for this product.For anybody who is deciding to purchase these monkey lights,I will say,it's a definite yes !

love this item, makes me even more visible for my very early morning cycle to work. Was interesting to fit properly so it didn't slip on the main wheel hub, but with some perseverance this was achievable and I wouldn't say hard to fit. I used the spare pads they give me for the LED portion on the cable ties. I would definitely recommend to all those cyclists who want to be seen.

It only looks in the photos if you go really fast, as it's not a complete loop, just a light on a wheel that looks like a loop as the wheel turns. Felt this was a bit of a false promise!