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The original was posted on /r/Ultralight by /u/echo3k on 2025-10-19 13:43:51+00:00.
The specs are very good (especially the battery size), its from a reputable brand, it looks nice. What are you toughts? For extra 5g its almost double capacity as the UL20.
It has 2lm red light, 7lm white light, 3 colour options. Its only IPX4 vs IP66.
| Model | Max Brightness | Weight | Battery / Energy | Key Features / Low-Light & Red-Light Modes |
|---|---|---|---|---|
| Petzl SWIFT LT | 380 lumens - wide flood | 43 g | 880 mAh Li-ion | • Low white: 7 lm → ~60 h • Medium white: 100 lm → ~6 h • Max white: 380 lm → ~2 h • Red continuous: 2 lm → ~25 h • Red strobe: visible ~700 m → ~200 h |
| Nitecore NU20 Classic | 360 lumens - Wide flood + auxiliary white & red lights | ~38 g | 500 mAh Li-ion | • White Low: 1 lm → ~97 h • White Mid: 38 lm → ~7 h • White High: 200 lm → ~5 h • Red High: 13 lm → ~12 h • Red Low: 1 lm → ~53 h |
| Nitecore NU25 MCT UL | 400 lumens - Flood/throw hybrid, 3 white temp options (warm/neutral/cool) | ~47 g | 700 mAh Li-ion | • White Ultralow: 6 lm → ~45 h • White Low: 60 lm → ~13 h • White High: 400 lm → ~2h 40m • Red High: 15 lm → ~10 h • Red Low: 5 lm → ~26 h |
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