Olight Seeker Ultra vs Olight ArkPro Ultra
Quick take: The Olight ArkPro Ultra costs $40 less; the Olight Seeker Ultra is brighter (4,800 vs 1,700 lm); the Olight Seeker Ultra throws farther (265m vs 205m); the Olight Seeker Ultra runs longer on high (408 vs 336 hrs).
| Spec | Olight Seeker Ultra | Olight ArkPro Ultra |
|---|---|---|
| Price | $169.99 | $129.99 |
| Rating | — | — |
| Type | Flooder | EDC |
| Lumens | 4,800 lm | 1,700 lm |
| Candela | 17,600 cd | 10,640 cd |
| Beam distance | 265m | 205m |
| Runtime | 408 hrs (moonlight) | 336 hrs (moonlight) |
| Battery | 21700 | Built-in |
| LED | 4x White LED + TIR | EIP 1 Flood + Spot LED + UV + Green Laser |
| Beam type | Flood | Balanced |
| Modes | Stepless + Memory | 5 Stepped + UV |
| UI | Rear Switch | Dual Switch |
| IP rating | IPX4 | IPX7 |
| CRI | 70 | 70 |
| Weight | 7.2 oz | 4.1 oz |
| Dimensions | 5.4 x 1.4 in | 4.9 x 1.1 in |
| Warranty | Lifetime | Lifetime |
What owners report
Olight Seeker Ultra
- ✓Excellent beam pattern with long battery life
- ✓Integrated USB-C alongside magnetic charging
- ✓Top-notch build in Olight's OAL superalloy — dense and well made
- ✓Just under 260 m of measured throw on turbo
- ✓Reviewers rate it a great all-rounder
- ✗High mode isn't memorised — it reverts to medium after a minute or two
- ✗The rotary knob feels cheap
- ✗Auto-lockout is intrusive
- ✗Poor voltage immunity and no power bank feature
- ✗Low-CRI emitters, and no dual flood-and-spot option
Olight ArkPro Ultra
- ✓EIP 1 emitter developed to fix Olight's tint reputation — very low colour deviation
- ✓White, true 365nm UV and a daylight-visible green laser in one flat body
- ✓Survives four-foot concrete drops and full submersion, with a lifetime warranty
- ✓Double-click to turbo restored after being changed on earlier models
- ✓Scores 7 or higher across six of seven real-world use cases
- ✗67 CRI makes colour-critical work like wire identification harder
- ✗Integrated battery can't be swapped in the field
- ✗Regulation is poor, as with most Olights
- ✗The ArkBeat indicator is a gimmick rather than a feature
- ✗$129.99 is steep for a light this size