

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.
🚴♂️ Light Up Your Night, Own the Road!
The Siuyiu JW617 bike light is a powerhouse front headlight featuring 17 LEDs with 4800 lumens brightness and a 2624-foot beam range. Equipped with a robust 10000mAh battery, it offers up to 16 hours of runtime and fast USB-C charging. Its 4 versatile lighting modes adapt to all riding conditions, while an IP65 waterproof rating ensures durability. The secure dual nut aluminum mount with silicone cushion provides stable, tool-free installation, making it ideal for commuters, mountain bikers, and families alike.

















| ASIN | B0D924GKQ3 |
| Auto Part Position | Front |
| Best Sellers Rank | #8,102 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Bike Headlights |
| Brand | Siuyiu |
| Brand Name | Siuyiu |
| Color | JW617 |
| Customer Reviews | 4.5 out of 5 stars 784 Reviews |
| Included Components | 1*Bike light, 1*Packing Box, 1*Type-C Charging Cable, 1*User Manual, 2*Aluminium Brackets |
| International Protection Rating | IP65 |
| Item Dimensions L x W x H | 6.69"L x 1.85"W x 1.18"H |
| Light Output Maximum | 4800 lumens |
| Manufacturer | Siuyiu |
| Manufacturer Part Number | S-JW617 |
| Material | Acrylonitrile Butadiene Styrene, Aluminum |
| Material Type | Acrylonitrile Butadiene Styrene, Aluminum |
| Model Number | S-JW617 |
| Mounting Type | Handlebar Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of settings | 4 |
| Power Source | Battery Powered |
| UPC | 639394251363 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |
| Water Resistance Level | Waterproof |
R**M
Excellent Light
Without a doubt a great purchase. I got this to give me more visibility at night. It delivered and how!. I ride an Ebike, 35 to 40 mph. I need to be able to see obstacles BEFORE I'm running over them. Riding on the berm of the highway. There are plenty of things to dodge. This light makes everything visible. Even on the LOW setting. Installing was not hard. But I had to pay attention to what I was doing. I would recommend this product. My safety is worth the expense. Which is not that much. Especially compared to a hospital bill. And the value and comfort of confidence I get using this light. You can SEE EVERYTHING! Battery life is good. You know exactly how much power is left. Recharging is a breeze.It looks great on my Ebike too.
M**R
The best of the bike head lights
This is a great bike light that gets you through the dark. In daylight, it helps prevent getting run over by its powerful blinking mode. It is easy to recharge.
N**A
Recommended
10/10. This makes riding my ebike at night a whole new experience. Illuminates the path way better than the single OEM headlight. I use both lights together and everything is bright as day. Build quality and battery durability is outstanding.
D**S
Really bright
Im going to buy it again. My bike was stolen, an its one of those purchases I love. It is really bright!
H**R
Bright lightbar for ebike
Bought this for my son’s HiKeep e-bike and it works so much better than the stock light. You easily see him coming and he can see while riding late in the evening. He installed it himself and has lasted months with no issues. Highly recommend for safety.
F**N
Incredibly bright!
Genuinely impressed, mounts are good battery is good came fully charged. It has a countdown of how much time you have left on your battery not just a random crappy bar. Thing is incredibly bright makes my light on my bike look like a joke, if you need a battery life or this is the one
D**D
Bright and good battery, terrible other things.
I bought the 4800 lumen model. Not sure if it's doing that much but it's very bright, brighter than a lot of the 'featured' ones on here. Why 3 stars you ask? Because I loathe the mounting bracket and the power button. That power button will make me be a jerk of a rider or get me into an accident. The mounting brackets look nice but feel cheap, especially with the provided plastic screws. I had to use a couple strips of sheet metal bent in a U to hold them in place, they slide around if your handlebars aren't just straight pipe bent into handlebar shape. Mine narrow a bit from the center to the handlebars so the brackets slip and need corrected after every ride. The power switch. You hold the power button for a second or so to turn it on, then if you press it you'll cycle through the various settings. (Including the insanely situational to the point of useless strobe light one. If I'm in a situation where I need a strobe light on a bicycle I'm calling 911, not strobing random people who will just drive past staring.) But if you want to change settings mid ride, like an empty road and want the brights on, or want to turn off the brights so you don't blind the crap out of oncoming traffic... the effing thing turns off! Seriously. You're trying to be safe and considerate but now you're riding blind for a few seconds of holding the power to turn it back on! Whoever designed the program must not ride or only rides in the daylight. It's probably a convenience feature in the day but I'd call it a suicide switch at night. I'd ignore the cheap brackets and give it 5 stars if the power switch was done better.
D**B
4800 lumens is no joke!
This light is about as bright as a quality car headlight out in the woods, and with 3+ hours of run time on high (and 7+ on low). Honestly impressive for the money. Good weight, and ease of charging with USB-C, including a percentage indicator. The mounting clamps are fine and with just 2 thumbscrews, you can quickly slide it on and off the mount "channel" that they go into molded into the light's case itself. All my friends are always surprised how bright it is when I turn it on out there. It's really all you need and nothing more for a bar light. This stuff has come a *long* way since I started night-riding mountain bike trails 15 years ago, but I actually prefer these smaller-name models more than the theoretically better-supported, overly expensive names, as the build quality is excellent and I've yet to see any of these tough modern outdoor-rated LEDs burn out. Now to find something this impressive for the helmet mount... that's another story! :)
B**A
Buena compra
Alumbra muy bien el bosque por la noche, allá mente recomendable para el MTB nocturno
A**T
Rekommenderas.
Mycket bra lampa för priset! Provade den för första gången dag, jag har den på min bebis barnvagn när vi går promenader i skogen. Jag kan inte svara för antalet lumen men den lyser på bra. Jag har några ficklampor på 2000 lumen sedan tidigare (bland annat Olight) och denna är mycket starkare, även på lägsta modet. Enkel att montera, känns som en bra konstruktion, finns 3 olika distanser, 4 om du räknar med fästet i sig. Det finns två plastdistaner och en gummipackning, jag har valt att använda bara fästet och packningen. Trots att jag kör över lite rötter och andra ojämnheter sitter den still och rör sig inte om inte vagnen rör sig. Batterinivå syns tydligt i displayen och jag upplever att den är rättvis med antal timmar och minuter som har gått. Levererades med 97% batterinivå, uppskattas om man som jag är otålig och vill prova den igår. Rekommenderas!
R**R
Buena iluminación
Muy aceptable luminosidad. Por lo menos he verificado duración encendida más de cuatro horas a máxima intensidad. Muy buen producto con más que excelente relación calidad precio.
D**N
Nice and bright
works as it should
J**N
Muy buenas
Luces muy potentes
Trustpilot
2 weeks ago
3 days ago