Buying a spectrometer means deciding whether the instrument matches the light sources you actually measure and how you like to work in the field or at the bench. Do you need a portable meter that evaluates LED and OLED lighting without a computer, or a UV-to-near-infrared fiber spectrometer that gives you a wider spectral window? The Ocean Optics USB2000 USB2000+ and the UPRtek MK350 answer that question very differently.
Quick Verdict
If your primary job is evaluating artificial light sources like LED and OLED, the UPRtek MK350 is the more convenient pick. It comes as a kit with a hard case, soft case, adapter, and pc cord, and it is designed for computer-free use. If your work reaches into UV and near-infrared wavelengths, the Ocean Optics USB2000+ is the one to focus on, with a stated 340-1034nm range and a calibration check before shipment.
Comparison Table
| Feature | Ocean Optics USB2000+ | UPRtek MK350 |
|---|---|---|
| Listed price | USD 418.00 | USD 350.00 |
| Price bar | ||
| Condition | Used | Used |
| Described use | UV-to-near-infrared fiber spectrometer | Portable LED meter for CCT, CRI, CIE1931/1976, spectrum distribution |
| Notable extras | Free official software included | Hard case, soft case, adapter, pc cord |
Where Each Product Wins
The Ocean Optics USB2000+ wins when your measurements need to span from ultraviolet to near-infrared. The listing specifies a wavelength range around 340-1034nm and says the unit is re-calibrated before shipment, with a deviation of less than 0.3nm after calibration. It also includes official software that is described as permanently valid and shareable.
The UPRtek MK350 wins when portability and convenience matter. It can be used without a computer, has an illuminated display, and ships with a hard case, soft case, adapter, and pc cord. That makes it a self-contained option for on-site lighting checks.
Product Notes
1PC Ocean Optics USB2000 USB2000+ Spectrometer uv range 340-1034nm (Tested)
The Ocean Optics listing describes a miniature ultraviolet to near-infrared fiber spectrometer with a wavelength range of roughly 340-1034nm. The seller says every unit is re-calibrated before shipment, keeping the wavelength deviation below 0.3nm after calibration. That makes it a suitable pick when you need a broader spectral window and want some reassurance that the unit has been checked. The official software is included as a free gift, is permanently valid, and can be shared again. Keep in mind that this is a used unit, so the final performance depends on the quality of the calibration check. It is also the higher-priced listing at USD 418.00.
UPRtek MK350 Digital Spectrometer LED Meter Kit, Hard Case & adapter
The UPRtek MK350 is described as a portable LED meter that works without a computer. It is aimed at evaluating artificial light sources such as LED and OLED, measuring CCT, CRI, CIE1931/1976, and spectrum distribution. The kit includes a hard case, soft case, adapter, and pc cord, and the unit is described as like new with the battery still at 100% after a recent charge. The illuminated display makes it easier to read in darker settings. Its main limitation is that its described focus is lighting analysis rather than general UV fiber spectroscopy. If your projects center on LED and OLED evaluation, the lower listed price of USD 350.00 makes this a very direct fit.
Final Choice by Use Case
For LED and OLED lighting evaluation, the UPRtek MK350 is the better match because it bundles portability, an illuminated display, and the necessary accessories. For UV-to-near-infrared spectroscopy work, the Ocean Optics USB2000+ is the direction to go, thanks to its 340-1034nm range and pre-shipment calibration check.
