IVL2 VFD Tube Display
The clock displays time, date and day of the week on a vintage IVL2 transparent vacuum fluorescent tube, originally made in the Soviet Union.
The Douk Audio Vintage VFD Clock is a charming vintage tube clock, best for vintage electronics fans. Rated 4.0 out of 5 across 57 user ratings. The main drawback: WiFi sync can be unreliable to set up. We scored it 3.9 out of 5.
Douk Audio builds this clock around a genuine Soviet-era IVL2-series display tube, and it glows the way no LED imitation can. What you give up is plug-and-play convenience: it ships set to China time, the WiFi sync can be temperamental, and you have to supply your own 5V USB-C power adapter.
NoFussDeal rates the Douk Audio Vintage VFD Clock 3.9 out of 5 at $105.99. Last updated September 26, 2026.
The clock displays time, date and day of the week on a vintage IVL2 transparent vacuum fluorescent tube, originally made in the Soviet Union.
The clock can connect to WiFi to synchronize the time automatically. It ships set to UTC+8, so on first use you either connect to WiFi or set the local time manually.
RGB LEDs in the base offer five display modes with adjustable color. The tube's brightness can be set to three manual levels or left on automatic adjustment.
A custom wooden base, 102mm across, holds a transparent 78mm glass cover over a gold-plated circuit board. The clock stands 110mm tall and weighs 214g.
The nostalgic design and functional features stand out. Douk Audio lists the color as Wood and the dial color as White. Score 80: its 4.0 star average on a 100 point scale.
Score 80: its 4.0 star average on a 100 point scale.
20% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 68: we started at 80 and took off 12 because it draws mostly complaints.
50% of ratings are five stars and 30% are four. 10% are three stars and 10% are one or two. The spread skews positive, but enough ratings sit low that the drawbacks below are worth reading. Score 80: its 4.0 star average on a 100 point scale.
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No adapter comes in the box. Connect the supplied USB cable to the clock's USB-C port and to a DC 5V adapter rated at 1A or more.
The clock starts on UTC+8. Connect it to WiFi to sync your local time, or set the time manually.
Pick one of three manual brightness levels, or leave it on automatic so the tube adjusts to the room.
Choose one of the five backlight modes and adjust the color to suit the room. The clock saves your settings.
Only for some buyers: we score it 3.9 out of 5. It shows time, date and weekday, has a five-mode RGB base, and offers automatic brightness.
Rated 4.0 out of 5 across 57 user ratings.
WiFi sync can be unreliable to set up. No power adapter in the box.
If WiFi sync won't connect, set the time manually. The clock remembers your setup.
The Douk Audio VFD4 is built around a real IVL2-series vacuum fluorescent tube, and the result looks genuinely retro rather than imitation. It shows time, date and weekday, has a five-mode RGB base, and offers automatic brightness. WiFi sync is its weak spot, it ships set to UTC+8, and you need to supply your own 5V USB-C adapter.
Buy the Douk Audio VFD4 for the look of a real VFD tube in a small wood-and-glass package. If you want a clock that sets itself perfectly out of the box, the stubborn WiFi and missing adapter will frustrate you.
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