YAYZA! 12V 200W LED Transformer (IP67) – 240V AC to 12V DC Waterproof LED Driver
Product description
What it is and why people buy it
If you’re running low-voltage LED strips or modules, the part that often makes or breaks the job is the power supply. The YAYZA! 12V 200W LED Transformer is a constant-voltage LED driver that takes mains power (AC 110-240V, 50-60Hz) and converts it to a 12V DC output for 12V LED lighting.
On paper, the selling point is the combination of a 12V constant output and an IP67 rating for outdoor-capable use. That means it’s aimed at installations where the driver may be exposed to damp, humidity, or the odd splash—think garden strip lights, outdoor stair lighting, and courtyard-style setups.
Key features worth noting
This driver is specified as a 12V, DC constant voltage supply rated up to 200W, outputting 16.6A. A few details matter in day-to-day use:

- It’s described as constant output and not dimmable. If your lighting plan uses dimmers, this is a potential mismatch.
- It’s stated to be not compatible with halogen lamps, so it’s designed around 12V LED loads.
- It’s also noted as carrying protection features including automatic protection against short circuits, overvoltage, overcurrent and overheating.
The input range is wide (110-240V, 50-60Hz), which is helpful for UK buyers who want something that’s not picky about mains voltage.
There’s also an anti-interference angle: the electronic converter is described as without radio interference and with minimal load and flicker noise. It’s the kind of “silent” performance you typically want when lights are running in hallways, staircases or outdoor paths.
Tech specs (the bits you actually need)


- Name: YAYZA! 12V 200W LED Transformer Waterproof IP67 LED Driver
- Type: LED transformer / low-voltage LED power supply (constant voltage)
- Input Voltage: AC 110-240V, 50-60Hz
- Output Voltage: DC 12V
- Output Current: 16.6A
- Output Power: 200W
- Dimming: Not dimmable (as stated)
- Waterproof rating: IP67
- Compatibility note: Not compatible with halogen lamps (as stated)

Where it shines (and a realistic limitation)
The IP67 waterproof claim is the headline for outdoor users, but it comes with an important caution: the transformer should not be immersed in water because it carries strong currents and isn’t considered safe to submerge.
So yes, it’s positioned for “outdoor and humid environments”, but you still want to treat it like electronics that belong in a protected installation—sealed glands, sensible cable routing, and avoiding direct immersion.
Worth considering if your setup is basically a 12V constant-voltage LED system and you’re wiring multiple LED segments in parallel (the notes say lights should be connected in parallel).
It also helps that the driver’s output voltage error is stated within plus or minus 5%, which can matter for maintaining consistent brightness across a run.

Buying decision: does it deserve a place in your shopping list?
It’s a good fit if you want a 12V DC constant-voltage LED driver for strip lights or similar low-voltage LED applications, and you specifically need an IP67-rated option for outdoor-style installation areas.
It makes sense if you’re planning for damp conditions like garden or courtyard lighting, or if you’re mounting near exterior steps where water exposure is plausible.


But it may not suit you if your system requires dimming, because the driver is described as not dimmable. It might also be a poor match if you’re trying to power halogen lamps, since it’s not compatible with halogen as stated.
One more practical limitation to keep in mind: the optimal output power is said to be approximately 80% of the transformer’s rating. That doesn’t mean you can’t use it differently, but if you’re sizing the build, you’ll likely want to leave some headroom rather than running it right at the top.

Getting the most from it (quick practical setup idea)
Imagine you’re installing an outdoor strip along a path or staircase edge. You’d typically mount the driver in a position where it can be protected from direct water contact (not submerged), then run 12V DC wiring to the strip sections.
Because the notes specify parallel connection, you’d connect your LED sections so they share the same 12V output in parallel rather than wiring in a way that would require a different electrical behaviour. Also, since it’s not dimmable, you’d plan brightness control separately—or stick to a fixed-output approach.
Pros and cons (based on what’s provided)
Pros you’ll likely notice: IP67 protection level for outdoor-capable installations, wide AC input range, constant voltage 12V output, and stated protection against electrical faults (short circuit, overvoltage, overcurrent, overheating). The no flicker/noise and anti-interference claims also point towards stable running for real-world lighting.

Where it may feel limiting: it’s not dimmable, it’s not for halogen lamps, and you should not immerse it in water even though it’s IP67.
Also, it’s quite “driver-focused” rather than a complete lighting kit—so you’ll still need to ensure your LED system matches 12V constant-voltage wiring expectations.


Mini FAQ
Will this LED transformer dim my lights?
No—it's described as not dimmable.

Is it safe to submerge the transformer for outdoor use?
No. Even with IP67, the notes say it should not be immersed in water.
What voltage does it output?
It outputs DC 12V, rated up to 200W and 16.6A.
What should I connect it to?
It’s intended for 12V DC low-voltage LED lights, including LED strip and module-style lighting, and the notes say the lights should be connected in parallel.
What should I check before buying?
Check that your lighting is 12V DC constant-voltage LED (not halogen), that you don’t need dimming, and that your wiring plan uses the parallel approach mentioned in the notes.
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