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Description
Optical Variable Attenuator EVA50-60Most compact and rugged portable attenuator on the market Three wavelengths: 1310nm 1490nm 1550nm Different attenuator range, 40dB, 60dB or 80dB Can save current value as reference Can save 10 tracks attenuation value Memorize the value after instruments shut down Energy save mode One year warranty and Three year recommended calibration interval Model EVA50 40 EVA50 60 EVA50 80 Attenuating Range 40 dB (SM) 60 dB (SM) 80 dB (SM) Calibrated Wavelengths
Most compact and rugged portable attenuator on the market
Three wavelengths: 1310nm / 1490nm / 1550nm
Different attenuator range, 40dB, 60dB or 80dB
Can save current value as reference
Can save 10 tracks attenuation value
Memorize the value after instruments shut down
Energy save mode
One-year warranty and Three-year recommended calibration interval
| Model | EVA50-40 | EVA50-60 | EVA50-80 |
| Attenuating Range | 40 dB (SM) | 60 dB (SM) | 80 dB (SM) |
| Calibrated Wavelengths | 1310nm / 1490nm / 1550nm | ||
| Fiber Mode | SM | ||
| Attenuating Mode | Digital | ||
| Display Resolving Power | 0.1dB | ||
| Display | LCD, 128*64 | ||
| Max Input Power | + 21 dBm | ||
| Return Loss* | 40 dB | ||
| Insertion Loss* | 2.5 dB | ||
| Connector | FC/PC (or customize) | ||
| Uncertainty | ± 0.5 dB | ||
| Repeatability* | ± 0.2 dB | ||
| RS-232 | Optional | ||
| Auto Power Off | No operation in 10 minutes (can be canceled), Low battery energy | ||
| Battery Charge | Yes | ||
| Operate Time | Above 20 hours | ||
| Power Supply | 3 * AA batteries or AC/DC adapter | ||
* at 20±3℃, CW, with FC/PC connector,1550nm
| Size(H*W*D) | 190mm * 90mm * 40mm | |
| Weight/td> | About 450g | |
| Storage Temperature | -20 -- +60°C, < 90%RH | |
| Operating Temperature | -10 -- +50°C, < 90%RH | |
EVA50-XX
Model
EVA50-40 = 40dB
EVA50-60 = 60dB
EVA50-80 = 80dB
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 552 reviews
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Product Reviews
★★★★★ 5
Quality
Color: Gold
Very good
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Reviewed in the United States on May 25, 2026
★★★★★ 5
quality
Color: Gold
Great quality.
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Reviewed in the United States on May 15, 2026
★★★★★ 4
so elegant but best for softer foods
Color: Gold, Color: Gold
I am impressed with this gold silverware. I was surprised because they are very light, but they are also elegant. The handles are a little longer than the usual plasticware, so holding them, using them to eat, made me feel like the meal was elevated. These would be perfect at a garden party, a brunch, a fancy picnic. I love that there are equal numbers of knives, forks, and spoons, and they would look beautiful at place settings, or just tossed into glasses for people to grab what they need.
My one misgiving about recommending these for any occasion is the knife. It’s just not sharp, and like the other pieces, it is lightweight. It’s great for spreading butter onto a roll and could cut through soft foods like pasta or cake. But any attempt to cut through a piece of meat or a starchy vegetable that’s just lightly cooked will result in the knife snapping in half. But if you’re serving relatively soft foods (brunch would be perfect!), then this is an elegant, easy solution to feed a lot of people while keeping cleanup to a minimum.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Durability and reliability
Color: Gold
Very durable. Loved them
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Fancy enough for a wedding, easy enough for a backyard party
Color: Gold, Color: Gold
I picked up this 300 Pack Premium Heavy Duty Gold Plastic Silverware set for a recent gathering, and honestly it worked out better than I expected. When you’re hosting a larger group, the last thing you want to worry about is running out of utensils or washing a mountain of dishes afterward, and this set definitely helped with that.
First off, the 300-piece set is really convenient. You get 100 forks, 100 spoons, and 100 knives, which made it easy to plan for about 100 guests without having to buy multiple packs. Everything arrived neatly organized in a clear storage box, which actually made it super easy to keep things tidy until party time.
The gold metallic finish is surprisingly nice. It gave the table a more polished, elegant look than standard plastic cutlery. I used them for a semi-formal dinner setup, and they blended in well with the decorations instead of looking cheap or out of place.
As for durability, they’re definitely heavier than typical disposable utensils. The forks handled pasta and salads just fine, and the knives worked well for softer foods like chicken and cake. They’re not quite the same as real metal silverware, of course, but for plastic they’re pretty sturdy and didn’t snap or bend easily.
I also appreciated that they’re BPA-free and disposable, which made cleanup incredibly simple once everything wrapped up.
The only small downside is that if you’re cutting tougher foods like steak, you might notice the knives aren’t quite strong enough for that. But for most party foods, buffets, and desserts, they work perfectly well.
Overall, this is a great option for parties, weddings, or large dinners when you want something that looks nicer than basic plastic but still want the convenience of disposable utensils. I’d definitely use them again for future events.
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Reviewed in the United States on March 7, 2026