Best picks

Little Bear 50/60Hz Strobe Light Tachometer Disc Review

A 3W LED strobe plus a printed tachometer disc for checking 33.3 and 45 RPM on a turntable, running from a low-voltage 15VAC supply.

3.5Editorial rating: 3.5 out of 5Editorial rating · research-basedUpdated October 25, 2026
$36.99Price checked November 3, 2026
Check price at Douk Audio

Our verdict

The Little Bear strobe light is a $36.99 turntable speed-checking kit: a 3W LED that flashes at mains frequency plus a tachometer disc printed for 33.3 and 45 RPM. You place the disc on the platter, shine the light at it and adjust the deck until the stripes stop moving. It is simple, safe at 15VAC and effective for two-speed decks, though it will not help 78 RPM players or turntables with no speed trim.

Best for
Turntable owners who want an inexpensive way to verify and set 33.3 and 45 RPM playback speed.
Skip if
You play 78 RPM records, or your turntable has no speed adjustment to correct.

Why 3.5/5: Lifted by clear steps for reading the disc, a stated 3W LED, 15VAC supply and a three-item box, at $36.99. Held back by no size, accuracy or supply rating, no 78 RPM stripe listed and no word on how 50Hz or 60Hz is selected.

The Little Bear stroboscopic speed strobe light is a turntable maintenance tool priced at $36.99. It generates a flash source at the 50/60Hz frequency of your household power supply, and combined with the tachometer disc in the box it lets you check and adjust a record player's rotational speed.

Because it keys off mains frequency, the maker says it suits almost every country. The light uses a 15VAC power supply, and the low voltage is deliberate: it protects the user from electric shock during use. The LED output is rated at 3W and is bright enough to be used in any environment, day or night, indoors or out. The unit is small and easy to store with the rest of your turntable accessories.

The procedure is straightforward: place the tachometer disc on the turntable and start it spinning, switch on the strobe and hold it 5-10cm from the disc, then watch the stripes for the 33.3 or 45 speed. If the stripes are stable and not moving, the speed is correct. Slow clockwise drift means the turntable is running fast, and slow anticlockwise drift means it is running slow. If the deck has speed adjustment, tune it until the stripe stops; if it has none, the maker suggests trying a new drive belt first, since belts stretch over time, before treating large variations as a mechanical fault. Once the speed is set, the disc comes off and the record goes on. The package contains the strobe light, the tachometer disc and a power supply.

Specifications

SpecPage says
ProductLittle Bear Mini 50/60Hz Stroboscopic Speed Strobe Light + Tachometer Disc
Flash frequency50/60Hz, following the household power supply frequency
Light source3W high brightness LED output
Power supply15VAC (ultra-low voltage)
Disc speeds33.3 and 45 speed stripes
Working distanceAbout 5-10 CM from the disc
Packing listStrobe Light x1; Tachometer Disc x1; Power Supply x1
Size and weightNot stated ('small size')
Power supply current and plugNot stated

How it compares

The strobe is the only speed-checking tool in this group; the speed claims elsewhere come from the record weights. The Nobsound STB-02 Aluminum Record Weight Clamp and Turntable Disc Stabilizer review ($29.99, $7.00 less) and the Nobsound STB-01 Record Weight and Turntable Disc Stabilizer review ($32.99, $4.00 less) both say they stabilize rotational speed, with no measurement; the strobe is how you would check a deck's speed with or without a weight.

The Nobsound R21K Turntable Cartridge Alignment and Tuning Kit review ($69.99, $33.00 more; $79.99 for the Other destination) covers alignment, tracking force and levelling, not speed, so the two complement each other. Choose the strobe if you want to verify 33.3 and 45 RPM and your turntable can adjust speed (otherwise the page suggests trying a new drive belt first); skip it if you play 78 RPM records, which the page does not mention.

Shipping, returns and warranty

  • Shipping: Douk Audio's current shipping page says orders are generally processed no later than the next business day and arrive in 2-8 business days, with duties, taxes and customs fees included in the checkout price unless noted otherwise.
  • Older shipping terms are still online: airmail at 10-25 days for parcels under 2 kg, DHL, UPS or FedEx at 5-8 days above that, and a line saying the store is not responsible for import duties. Check the delivery estimate and any duties at checkout.
  • Returns: ask within 30 days of delivery and wait for approval before sending anything; an approved return has to ship within 7 days. Items need all packaging and accessories and no excessive wear, or the store can refuse them or refund part of the price. Refunds go to the original payment method after inspection.
  • Not refunded: original and expedited shipping, duties, taxes and customs charges, unless the law requires it or the store made the error. The return page does not say who pays return postage, and the older refund page excludes mistaken orders and change-of-mind returns from free after-sale service.
  • Warranty: 24 months from purchase for manufacturing defects, with free repair, a replacement unit and free shipping both ways for covered repairs. Drops, liquid, DIY repairs, lightning, extreme temperatures and misuse are excluded (partial fees may apply), and damage from weak packing on the way back may not be covered. The older refund page still says 1 year.
  • Seller: the site is run by Shenzhen Anba Technology Co., Ltd (Shenzhen, China) and HONGKONG LONGSHENG Import and Export Trading Co., Limited (Hong Kong); support is by email at [email protected]. These terms cover orders placed on doukaudio.com; other sellers apply their own.

For this product, the page lists US, UK, EU, AU and Other under 'Shipping to' and shows Free Shipping, 2-8 Days Arrival, 30-Day Return and 2-Year Warranty badges near the price.

What we liked

  • Works on both 50Hz and 60Hz mains frequency, so it suits most countries
  • The 15VAC supply keeps the voltage low, which the maker says protects against electric shock during use
  • 3W high-brightness LED is bright enough for indoor or outdoor use at any time of day
  • Comes with the tachometer disc needed to read the 33.3 and 45 speed stripes
  • Tells you the direction of any speed error: stripes drifting clockwise mean the deck is running fast, anticlockwise means slow

Worth noting

  • Only 33.3 and 45 RPM marks are described; there is no 78 RPM support
  • It is a visual check rather than a measurement, so you judge speed by whether the stripes stand still
  • It cannot correct a turntable with no speed adjustment; the maker's own advice in that case is to fit a new drive belt or treat it as a mechanical fault

Questions before you buy

How do I know if my turntable speed is correct?

With the disc spinning under the strobe, stable stripes mean the speed is correct. Slow clockwise movement means it is running fast, and slow anticlockwise movement means it is running slow.

Is it safe to use near records?

The strobe runs from a 15VAC supply, and the listing says the ultra-low voltage protects you from electric shock during use.

Does it support 78 RPM?

The listing describes 33.3 and 45 speed stripes on the tachometer disc; 78 RPM is not mentioned.

What is included?

One strobe light, one tachometer disc and one power supply.

Sources & verification

What this review is based on and the day we last read it. Specs and claims from the maker are the maker’s own; the verdict and the rating are ours.

From the store

  • Douk Audio product pagePrice $36.99, features (50/60Hz flash, 15VAC, 3W LED), the usage instructions, the packing list (strobe, disc, power supply) and the user manual link; no parameters table.Read October 25, 2026
  • Douk Audio shipping policyOrders are generally processed no later than the next business day, 2-8 business days in transit, duties, taxes and customs fees included at checkout unless notedRead October 25, 2026
  • Douk Audio older shipping policyOlder terms still online: airmail 10-25 days under 2 kg, DHL/UPS/FedEx 5-8 days above, store not responsible for import dutiesRead October 25, 2026
  • Douk Audio return and refund policy30 days from delivery with prior approval, ship back within 7 days; shipping, duties and taxes not refunded unless the store erredRead October 25, 2026
  • Douk Audio older refund policyOlder terms still online: 30-day free return or refund and a 1-year warranty; mistaken orders and change of mind are excludedRead October 25, 2026
  • Douk Audio 24-month warranty page24 months from purchase for manufacturing defects: free repair, replacement unit and two-way shipping for covered repairs; lists exclusionsRead October 25, 2026
  • Douk Audio contact pageSite run by Shenzhen Anba Technology Co., Ltd and HONGKONG LONGSHENG Import and Export Trading Co., Limited; support emailRead October 25, 2026

What we couldn’t verify

  • The page gives no size, weight, flash accuracy or LED specification beyond '3W', and no power supply current or plug type; it says '15VAC' without saying which mains voltages the supply accepts.
  • 'Most accurate position' and 'most accurate sound output' are page claims; the page does not say how accurate the 50/60Hz flash is or how the disc was printed.
  • The page does not say how a 50Hz or 60Hz setting is chosen, or whether the disc has separate stripes for each frequency.
  • One buyer review on the page (Dec 20, 2025) reports that the supplied adapter did not work; it is a single report, and the page gives no separate warranty detail for the adapter.

Spotted an error or something out of date? Tell us and we’ll fix it and update the date.

Share this review