SIRYYUI 12V COB LED Strip Light 2x5m (480 LEDs/m) in 4000K, CRI 90+ — no power supply

Key takeaways on this SIRYYUI COB strip

If you’re after a more “continuous” linear look for cabinet or under-cabinet lighting, COB LED tape is a sensible route. This SIRYYUI set is a 12V COB LED strip light supplied as two 5m rolls (so 10m total), designed to produce a dense, even output rather than the typical spotty feel you can get with some other tape styles.

On paper it ticks a few boxes people tend to care about for kitchen and display lighting: 4000K natural white, high colour rendering (CRI 90+), and a stated dotless design aimed at reducing visible dark spots. That said, it’s also the sort of product that can disappoint if you expected it to be plug-and-play from the box, because the listing explicitly says the power supply is not included.

What it’s for (and where it fits best)

This is aimed at practical, in-home lighting jobs where evenness and colour matter more than novelty. The included use ideas in the description make the intent pretty clear: under kitchen cabinets and around countertops, TV backlighting, stair or hall accents, and cabinet/display lighting. A 4000K “natural white” tone generally sits between warm and cool, so it can work well in kitchens if you want brightness without going fully blue.

A concrete example: imagine running the tape along the underside of your kitchen wall units. With COB-style density and the “dotless” aim, you’re looking to get a smoother strip of light across the worktop rather than bright blobs.

The essentials: brightness, colour, and LED density

The listing claims high density—480 LEDs per metre—and a natural white 4000K colour temperature. It also states CRI 90+, which matters if you’re trying to keep foods, surfaces, or displayed items looking more natural (rather than washed out).

It also mentions a brightness figure (5,0000 lumens) and positions this as roughly equivalent to a 350W incandescent lamp for “most lighting needs”. Take that kind of equivalence with caution, because real-world outcomes depend on installation, diffuser/cover, and how much of the light lands where you want it. Still, within the scope of tape lighting, the overall spec narrative is clearly “bright and even”.

There’s also a stated lifespan “more than 5,0000 hours” and a low power draw of 9W/m. That combination is the kind of long-term value people look for when upgrading lighting across a few rooms.

What stands out in day-to-day use

Where this strip could feel genuinely better than basic tape options is in the look: the description contrasts it with traditional SMD 2835/5050 styles and claims the emitting units are close together for uniform, softer light.

Two practical install notes are worth flagging: - It’s cuttable to the desired length, which helps if you’re measuring awkward cabinet runs. - It’s flexible, and the listing says it can be bent to angles (including 90° or more), which is useful for corners and returns.

Also, the tape is described as ultra-thin and 8mm wide, which helps it sit neatly in tight spaces like cabinet recesses.

Tech specs that influence your purchase

This is a 12V COB LED strip set. The description says it uses real double-layer copper PCB for better conductivity and heat dissipation, and that the working voltage is 12V.

It’s important to know what’s missing: the product is sold “No Power Supply”. The description also mentions it can be powered by a transformer or DC adapter, and provides guidance that you should not use an adapter higher than 12V for supply. It also notes that a 12V 3A power supply is recommended—but because the listing excerpt cuts off, you’ll still want to check your total run length and power needs before you buy a controller/adapter to match.

Potential limits (and who should be cautious)

This is not ideal if you want a truly “box to light up” experience. Because there’s no power supply included, you’ll need to plan your power and any dimming control.

The description says it is “dimmable as well”, but also states “dimmer is not included in the parcel” and suggests buying a single-colour strip dimmer separately. So if your main goal is just to swap in tape and keep everything else, you may find you still need extra parts.

Finally, while the spec claims dotless and a smooth look, tape lighting outcomes depend quite a bit on where you mount it—distance from the surface, whether you use a diffuser channel, and how you route it along the run. If you’re placing it in a way that exposes LED points directly, any “dotless” marketing can’t fully override installation lighting physics.

Should you buy it? Final verdict

It makes sense if you want a 12V COB LED tape set for cabinet, countertop, stairs, or display lighting, and you care about more even linear light plus natural colour reproduction (4000K, CRI 90+). The two-roll, cuttable, flexible setup also suits typical DIY layouts where lengths and corners vary.

You may want to skip it if you’re not prepared to buy the right 12V power supply/transformer and possibly a dimming control. It’s also less suitable if you’re expecting a complete kit with everything needed to connect and start.

If you’re someone who’s happy to measure your runs and plan power properly, this sits in the “practical upgrade” category. If you’re looking for a one-part solution with no extra purchasing, it may feel incomplete.

Mini FAQ

What does “no power supply” mean for installation?

You’ll still need a suitable 12V power source (for example, a transformer or DC adapter, as described). The strip is ready for powering, but you won’t get the power supply included.

Is it suitable for corners and awkward cabinet runs?

The description says the strip is flexible and can be bent to angles (including 90° or more), and it’s designed to adapt to corners.

Can you cut it to fit?

Yes. The listing includes a cuttable COB LED strip design so you can trim it to the desired length.

Is dimming supported?

It’s described as dimmable, but a dimmer is not included, so you’d need to add a compatible dimmer separately.

What kind of light colour is 4000K?

4000K is generally “natural white”. In everyday terms, it should look brighter and more neutral than warm white, which can be helpful in kitchens and work areas.