Earlier this year, Olight released the OSight S, a compact, enclosed wireless-recharging red dot. I reviewed it and found it to be one of the most feature-rich micro red dots with an RMS-c footprint. People liked its features, but for some the recharging battery was a dealbreaker. Well now there is an OSight with a replaceable coin battery.
OSIght listened and has released the SE. This new red dot replaces the magnetic recharging top with a side battery tray that holds a CR 1620 battery, which can be replaced without dismounting the unit and retaining zero. The user can press the “-” button to switch between a 2 MOA dot, 32 MOA circle, and a circle-dot reticle. The battery can drive the SE for up to 70,000 hrs on dot mode at level 3 brightness.
I still prefer the original S because its recharging cover allows me to see its current battery charge and recharge the unit easily. For people who prefer optics with a battery that can easily be sourced and replaced, the SE has more features than most enclosed red dots, for a reasonable price.
BUY
SPECS
| Reticle Type | 2 MOA Dot / 32 MOA circle |
| Adjustment | 1 MOA per Click |
| W&E Travel Range | ± 35 MOA |
| Window Size | 14mm x 21mm |
| Brightness Settings | 12 (10 visible & 2 NV) |
| Max. Runtime | 75,000 Hours |
| Power Source Optic | CR 1620 |
| Dimensions | Length: 1.59 inch Width: 0.98 inch Height: 0.97 inch |
| Waterproof | Optic: IPX7 |
| Weight | 0.97 oz / 27.5 g |