SKU: 4437899561

JW3109B Portable Optical Light Source Wavelengths 850/1300nm

$121.63 $135.14
Save 10%
No.2 Bestseller on ateurope.org >

Pay in installments of $33.78 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

JW3109B Portable Optical Light Source Wavelengths 850/1300nmPart Number: OEM NO. JW3109B Application: Provides 1~4 output wavelengths which can be optional according to customer's needs. CW, 2Hz modulation output at 650nm, and CW, 270Hz,1KHz,2KHz modulation output at other wavelengths. High stability of the output power. Stable output wavelength. Backlight LCD display supports night operation. Compact size and decent appearance. Large LCD, easy operation. Alternative 10 minutes Auto off function conserving

Part Number:

OEM NO. JW3109B

Application:

Provides 1~4 output wavelengths which can be optional according to customer's needs.
CW, 2Hz modulation output at 650nm, and CW, 270Hz,1KHz,2KHz modulation output at other wavelengths.
High stability of the output power.
Stable output wavelength.
Backlight LCD display supports night operation.
Compact size and decent appearance.
Large LCD, easy operation.
Alternative 10 minutes Auto-off function conserving battery life.

Specification:


Type:JW3109A JW3109B JW3109C JW3109D
Wavelengths(nm):650 850/1300 1310/1550 850/1300/1310/1550
Emitter Type:FP-LD,LED or others please specify¡¡
Typical Output Power (dBm):0-7dBm for LD, -20dBm for LED
Spectral Width(nm):¡Ü10
Output Stability:¡À0.05dB/15mins; ¡À0.1dB/ 8hours
Modulation Frequencies:CW,2Hz CW,270Hz,1KHz,2KHz
Optical Connector:FC/ universal adaptor FC/PC
Power Supply:Alkaline Battery(3 AA 1.5V batteries)
Battery Operating Time(hour):45
Operating Temperature(¡æ):-10~+60
Storage Temperature(¡æ):-25~+70
Dimension(mm):175x82x33
Joinwit Recommendation:
JW3109 Handheld Light Source is designed for optimal use with JW3208 Optical Power Meter for measuring
optical loss on both single mode and multimode fiber cable

Notice:

JW3109 optical light source can provide 1 to 4 output wavelengths to meet specific requirements, including the 650nm red source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer needs. Together with the JW3208 optical power meter, it is a perfect solution for the fiber optic network characterization.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4437899561

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 14 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
E
Verified Purchase
Elkin Mauricio
Port Orchard, US
★★★★★ 5
Calidad en Tela y presentación.
Size: 10, Color: Beige
El Traje divino, tal como la imagen. Solo le quedó un tris grande a mi hijo y listo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
K
Kara Robinson | IG: @booklistfordays
Battle Creek, US
★★★★★ 4
⭐️⭐️⭐️⭐️⭐️ Perfect for My Suit-Loving 9-Year-Old 🤍👔✨
My 9-year-old is obsessed with suits, and this one was a total win! 😍 The 3-piece set (blazer, vest, and pants) makes him feel so grown-up and confident. The linen material is lightweight and breathable, which is perfect for warm weather ☀️ — and it doesn’t wrinkle easily, which I appreciate as a parent 🙌. He loves that he can wear it different ways — full suit, just vest and pants, or blazer and pants. 👌 The fit looks sharp, and the adjustable waist is super helpful. Perfect for weddings, school events, church, or any time he wants to dress to impress. 💙 Definitely a favorite in our house! 🎉
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
W
Whitings
Grantham, US
★★★★★ 5
Adorable special occasion suit for boys
Size: 5, Color: Light Blue, Size: 5, Color: Light Blue
I ordered this 3-piece suit for my son and even though it’s currently a little too big for him, I couldn’t resist keeping it because it’s absolutely adorable! The quality really impressed me right out of the package. The fabric feels lightweight and breathable, which will be perfect for warmer weather, and it has a nice polished look without feeling stiff. The set comes with a blazer, vest, and pants, and each piece is very well made. I love the little details like the lapel on the jacket, the adjustable strap on the vest, and the adjustable waist on the pants, which will definitely help as he grows. It looks like a much more expensive suit than it actually is. Even though my son will have to grow into it, I’m already excited for him to wear it. I’m thinking it will be perfect for Easter next year or any special occasion. It’s such a cute outfit, and I love that the pieces can be mixed and matched for different looks. Overall, I’m really happy with this purchase and can’t wait to see him wearing it! The blue color goes well for any occasion and I may have to order my husband a suit in matching shade of blue so they can be twins. The size looks accurate for boys 5T. I took a picture to show the pants next to a pair of unwashed Oshkosh B’Gosh brand straight leg 5T boys denim jeans.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
J
Jordan
Natrona Heights, US
★★★★★ 5
Perfect Summer Suit for Boys – Stylish and Comfortable!
Size: 5, Color: Light Green
I’m so impressed with this **boys' linen summer suit**! 👔🌞 It’s the perfect outfit for warmer weather while still looking sharp and stylish. The **linen fabric** is lightweight and breathable, making it ideal for those hot summer days. My son looked fantastic in it, and he was comfortable all day long, which is a big plus! The suit fits **true to size**, and the cut is modern yet classic. The **jacket** has a great, tailored look without being too stiff, and the **trousers** are just the right fit—not too baggy or too tight. It’s a very **polished** look for events like weddings, family gatherings, or holiday parties. I also love that the **color options** are vibrant and fresh, perfect for summer. The suit is **easy to care for**—I was worried about linen wrinkles, but it’s held up well after a few washes, and the fabric still looks crisp. Overall, this **boys' linen summer suit** is an excellent purchase for any special occasion or just to make your little one look extra sharp during the summer months. **Comfortable, stylish, and durable**—highly recommend! 🌟👔
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
M
MScala
Whiting, US
★★★★★ 5
Nice summer suit for my son
Size: 6, Color: Light Green, Size: 6, Color: Light Green
I got this linen suit for my 7 year old son and it looks really nice on him. The set comes with the blazer, vest, and pants, which makes it look very polished when worn together. The material is lightweight and breathable, which is great for warmer weather. It has that classic linen look but still feels comfortable enough for kids to move around in. My son wore it for a few hours and didn’t complain about it being uncomfortable. I also like the little details like the pockets, the adjustable back on the vest, and the adjustable waistband on the pants. Those features really help with getting a better fit. Another nice thing is that you can mix and match the pieces. He can wear the vest and pants for a slightly more casual look or the full suit for more formal occasions. Overall it’s a really nice suit for kids, especially for events like weddings, family gatherings, or school events. My son looked great in it and it worked perfectly for the occasion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026

recommand products

Main Rod & Camshaft Bearings Set - 1968-2002 Chevrolet SBC 5.7L 350 327 307 305
57.65
SBF 351W Typhoon Manifold - Satin
108.00
Steel Expansion Freeze Plug Kit Chevrolet SBC 5.7L 283 302 305 307 327 350 383
16.98
Manitoba Blizzard Embroidered Sweatpants
56.00
BBC 8in Harmonic Damper - Non-SFI
120.99