$13.99
1 retailer
Beta QRv3
The Prometheus Lights Beta QRv3 is a 90 lm, 0.13 lb flashlight with a 40 m beam. It runs on AAA.
- Max output
- 90 lm
- Beam
- 40 m
- Weight
- 0.1 lb · 60 g
- Battery
- AAA
Image not availableWhat the data says
- Lighter than 67% of the 15 other lights we list in the 1–590 lm range.
- Stated CRI of 90: colors look closer to daylight than with typical LEDs (CRI 70–80).
- Lowest in-stock price is 6% below list price this week.
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 5, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (prometheuslights.com).
| Max output | 90 lumens |
|---|---|
| Beam distance | 40 m (44 yd) |
| Longest runtime | 50 hours |
| LED | Nichia 519A |
| Color rendering (CRI) | 90 |
| Color temperature | 4,000 K |
| Battery | AAA |
|---|---|
| Battery included | Yes |
| Type | Keychain |
|---|---|
| Weight (manufacturer) | 0.13 lb (60 g) |
| Length | 7.5 cm (2.9 in) |
| Head diameter | 1.4 cm (0.6 in) |
| Body | Brass |
| Water rating | IPX8 |
| Switch | Twisty |
|---|---|
| Colors | Raw Brass, Velvet Brass, Raw Copper, Velvet Copper, Electroless Nickel, HAIII Black, Velvet Copper ICE, Velvet Brass ICE |
