Best night light · Circadian light bulbs
BlockBlueLight Twilight Deluxe Plugin Red Night Light
A plug-in red night light (600 to 640 nm) that dims from 0 to 60 lm and has motion and always-on modes. Built for hallways and nurseries.
Specs
| Colour / CCT | Red, 600–640 nm |
|---|---|
| Blue light (brand claim) | 0% blue and green |
| Brightness | 0–60 lm |
| Dimming | Variable |
| Flicker data | "Flicker free" claim, no data |
| Control | Plug-in; motion or constant mode |
| Power | 0.5 W |
| Plug | US |
| Size | 3.07 x 2.72 x 1.77 in |
Specs from the manufacturer and the sources listed below. Last verified Oct 20, 2026.
Good
- Adjustable output down to very low levels, which suits the under-1-lux target for sleeping rooms
- Motion mode lights only when someone moves, so it is not on all night
- Red only, with no blue or green claimed
Not so good
- $34.95 is a lot for a night light
- No dusk-to-dawn sensor mentioned, only motion and constant modes
- No warranty period stated on the product page, only a 30-day return policy
A night light should give you just enough light to walk to the bathroom or check on a baby, and nothing more. This one is red only (600 to 640 nm), dims from 0 to 60 lm and has a motion-activated mode, which is the setup that best fits expert advice to keep the sleeping room as dark as possible, under 1 lux melanopic EDI at the eye (Brown et al., 2022).
Motion mode is the main reason to pick it over a cheaper always-on night light. It means the light is off for most of the night and only comes on when someone gets up. There is also a constant mode for a nursery during feeds.
What it does badly: it is expensive for what it is. BlockBlueLight states a “flicker free” design and certifications (ETL, FCC, CE, UKCA, RoHS, RCM), but publishes no flicker figure, and the product page does not state a warranty period beyond a 30-day return window. It has no daylight sensor listed, so in constant mode it stays on until you switch it.
How it compares: Bon Charge’s Plug In Night Light costs $34.99, peaks at 630 nm and puts out 50 lm, with three fixed brightness levels, a motion mode and a 1-year warranty. The two are close; this one wins on continuously variable brightness. If you need light for a whole bedside lamp rather than a path, the Bon Charge red bulb is brighter, and the Hooga Sleep Light Bulb is a dim red bulb for a lamp you already own.
Keep it low and below eye level. Even red light is light, and the darker the room stays during sleep, the better.
Sources
Alternatives
- Best amber bulbBlockBlueLight Sweet Dreams Sleep Light Bulb$22
- Best smart bulbPhilips Hue White Ambiance A19 (1100 lm, 2-pack)$55
- Best red bulbBon Charge Blue Light Blocking Light Bulb (red)$25
- LIFX SuperColor A19 (1100 lm)$25