xTool F2 Ultra UV vs F2 Ultra MOPA: Same Price, Completely Different Lasers
Buy the F2 Ultra UV if your products are glass, crystal, clear acrylic or heat-sensitive plastics. Buy the F2 Ultra MOPA if your products are metal: color-marked stainless, deep engraving, embossing or cut jewelry. The xTool F2 Ultra UV and the MOPA-only xTool F2 Ultra both start at $3,799, share the same 15,000 mm/s galvo platform and the same dual 48MP cameras. The laser inside is what's different, and it decides which materials each machine is actually good at.
Table of Contents
- Quick Answer: UV or MOPA?
- Spec-by-Spec Comparison
- Why the Wavelength Decides Everything
- Glass, Crystal and Clear Plastics
- Metal: Color, Depth and Cutting
- Where They Overlap
- Price, Bundles and Safety
- Choose the UV If / Choose the MOPA If
- Frequently Asked Questions
Quick Answer: UV or MOPA?
Think of these as two specialists in the same chassis. The F2 Ultra UV uses a 5W, 355 nm "cold" laser that breaks molecular bonds instead of burning, which is why it can engrave an image inside a crystal block and mark clear acrylic without clouding it. The F2 Ultra MOPA uses a 60W fiber laser with adjustable pulse width, which is why it can produce more than 100 colors on stainless steel and cut brass up to 2 mm.
Based on the calls our team fields every week, buyers usually arrive at this comparison because both machines carry the "F2 Ultra" name and the same price. The right question isn't which is better. It's which material you sell most.
Spec-by-Spec Comparison
| Spec | F2 Ultra UV | F2 Ultra MOPA |
|---|---|---|
| Laser | 5W UV, 355 nm | 60W MOPA fiber, 1064 nm (optional 40W diode) |
| Spot size | 0.02 × 0.02 mm | Not listed on product page |
| Surface field | 7.9" × 7.9" (200 × 200 mm) | 8.6" × 8.6" (220 × 220 mm) |
| With conveyor | 7.9" × 19.7" | 8.6" × 19.6" |
| Inner glass engraving | Yes, 2.8" × 2.8" (70 × 70 mm) | No |
| Color on stainless | No | 100+ repeatable colors |
| Cutting | 15 mm basswood, 12 mm acrylic (multiple passes) | Brass/stainless to 2 mm, aluminum to 1 mm |
| Max speed | 15,000 mm/s | 15,000 mm/s |
| Cameras | Dual 48MP | Dual 48MP |
| Starting price | $3,799 | $3,799 (MOPA only); $4,799 (with 40W diode) |
Prices as of publish time, subject to change.
Why the Wavelength Decides Everything
Most lasers work by heating material until it marks, melts or vaporizes. That's how fiber lasers color stainless steel, and it's also why heat-based lasers crack glass, cloud clear plastics and char wood edges.
A 355 nm UV laser works differently. Its photons carry enough energy to break molecular bonds directly, removing material with almost no heat-affected zone. That "cold processing" is what lets the F2 Ultra UV mark glass and silicone cleanly, and its 20-micron spot holds fine text, QR codes and serial numbers small enough for electronics and medical parts.
The MOPA laser leans the other way. At 1064 nm, its light is absorbed strongly by metal, and its adjustable pulse width controls exactly how much heat reaches the surface. On stainless steel, that heat controls the oxide layer, and the oxide layer controls the color. Sixty watts is also enough power to remove metal, not just discolor it.
Glass, Crystal and Clear Plastics
This is the F2 Ultra UV's territory. It focuses the beam at a point inside a transparent block, creating a microscopic fracture while the glass above and below stays untouched. Thousands of those points build a portrait or logo that floats inside the crystal, within a 70 × 70 mm inner-engraving field. A crystal keepsake with a portrait inside sells at a very different price from a surface-frosted block.
The UV laser also marks clear acrylic, silicone, rubber and ceramics with crisp detail and no melting, clouding or cleanup. xTool notes there's no masking tape, marking spray or polishing step, which on a batch of fifty awards can save more labor than the engraving time itself.
The MOPA isn't the tool for this work. Fiber light at 1064 nm largely passes through clear glass, so it can't do inner engraving, and heat-based marking on transparent materials is far less forgiving.
Metal: Color, Depth and Cutting
This is the F2 Ultra MOPA's territory. Its 60W source produces more than 100 repeatable colors on stainless steel, clean black marks on anodized aluminum, deep engraving you can feel, raised embossing, and cuts brass and stainless up to 2 mm and aluminum up to 1 mm. That last capability opens up name necklaces and cut-out pendants.
The UV laser can mark metal surfaces, but it isn't built for color, depth or metal cutting. If your catalog is stainless tumblers, color-marked tags, coins or cut jewelry, the MOPA is the right machine. Expect a parameter-testing session per alloy for color work; once a recipe is dialed in, it holds batch to batch. Our F2 Ultra MOPA review covers color marking in detail.
Where They Overlap
Both machines share xTool's F2 Ultra platform: a 15,000 mm/s galvo, dual 48MP cameras for positioning and focus, an Auto Streamline Conveyor option and MagSwap RA3 rotary support. Both can work on wood and leather, with caveats.
- Wood and leather: The UV engraves wood and leather cleanly and cuts basswood to 15 mm in multiple passes. The MOPA-only F2 Ultra has no diode, so for wood and leather you'd need the $4,799 Dual Laser version with its 40W diode.
- Plastics: Both mark plastics. The UV does it cold, without melting or clouding; the MOPA suits engineering plastics.
- Field size: The MOPA's 220 mm field is slightly larger than the UV's 200 mm surface field.
Price, Bundles and Safety
| Package | F2 Ultra UV | F2 Ultra MOPA only |
|---|---|---|
| Standalone | $3,799 | $3,799 |
| + Conveyor | $4,249 | $4,249 |
| Deluxe Bundle (conveyor, RA3 rotary, AP2 purifier) | $5,259 | $5,269 |
The MOPA is also offered as a Dual Laser version with a 40W diode, at $4,799 standalone.
On safety, xTool rates the F2 Ultra UV as a Class 4 laser product, and its 355 nm beam is invisible, with scattered reflections hazardous to the eye. Use the supplied enclosure and UV-rated eye protection, and in a school or shared studio plan for a documented laser safety procedure. Both machines need fume extraction, ducted outside or filtered through a purifier such as the SafetyPro AP2 in the Deluxe Bundles. Based on our experience selling laser engravers to universities, schools and businesses of all sizes, sorting room requirements before the machine arrives saves the most time.
Choose the UV If / Choose the MOPA If
Choose the xTool F2 Ultra UV if:
- You want to sell crystal keepsakes or glass awards with images engraved inside
- You mark clear acrylic, silicone, rubber or other heat-sensitive materials
- You need ultra-fine detail: micro text, QR codes or serial numbers
- You want cold processing with no prep, masking or polishing
Choose the xTool F2 Ultra MOPA if:
- Metal is your main product: tumblers, tags, coins, knives and jewelry
- You want color-marked stainless steel as a premium product line
- You need deep engraving, embossing or cut metal up to 2 mm
- You also work in wood and leather (choose the $4,799 Dual Laser version)
Stepping down from the F2 Ultra? Our xTool F2 vs F2 Ultra comparison covers the portable F2. Comparing across brands? See our F2 Ultra UV vs ComMarker Omni X, xTool vs Gweike and F1 Ultra vs F2 Ultra MOPA guides, or browse all MOPA fiber laser engravers.
Frequently Asked Questions
What is the difference between the xTool F2 Ultra UV and F2 Ultra?
The laser. The F2 Ultra UV uses a 5W, 355 nm UV laser for glass, crystal and plastics, including engraving inside glass. The F2 Ultra uses a 60W MOPA fiber laser for metal, including 100+ colors on stainless steel and cutting brass up to 2 mm. Both start at $3,799 and share the same galvo platform and cameras.
Can the F2 Ultra MOPA engrave glass?
Not well, and it can't engrave inside glass. Fiber light at 1064 nm largely passes through clear glass. For glass and crystal, including inner engraving, the F2 Ultra UV is the right machine.
Can the F2 Ultra UV do color marking on metal?
No. It can mark metal surfaces, but color marking on stainless steel requires a MOPA laser with adjustable pulse width, like the F2 Ultra.
Which is better for a small business?
The one that matches your products. Glass awards, crystal keepsakes and clear acrylic point to the UV. Stainless tumblers, color tags, coins and metal jewelry point to the MOPA. If you'll sell both, many shops add the second machine once one product line is proven.
Is the F2 Ultra UV safe for a classroom?
xTool rates it Class 4, and its UV beam is invisible. It can be used in schools with the supplied enclosure, UV-rated eye protection and a documented safety procedure. Contact us before ordering for a shared space.
Can either machine cut wood?
The F2 Ultra UV cuts basswood up to 15 mm in multiple passes. The MOPA-only F2 Ultra can't cut wood; the Dual Laser version adds a 40W diode for wood, leather and acrylic.
Not sure whether UV or MOPA fits your product line? Contact The Maker's Chest team and tell us what you sell. We'll tell you which one pays for itself first.
