Will this work for GU10

Sorry, I cannot answer for Certain because your question is not specific enough. I purchased mine to drive 12V GU5.3 50W Bulbs. Providing your Bulbs are of 12V nature and do not exceed 50W Power rating, they should be OK. However, if the wattage is TOO low it may not draw enough current to allow the device to regulate or even work at all. If they are 30W or 50W as mine it should be OK.

What are the actual product dimensions? Shown on web page as ‎27 x 19.5 x 18 cm, which can't be right!!

Elsewhere on page it says: Dimensions: 21mm Height x 30mm Width x 120mm Length The supplier could do with correcting the wrong data you have highlighted

How many 20w lights will it run? I've got 5 out due existing transformer dying.

It’s rated for 20w to 60w, therefore you could run 3x20w.

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National Lighting 12V Transformer - Low Voltage 20W – 60W Rated Electronic Dimmable Transformer for Halogen Lights Lamps Bulbs IP20 Rated

National Lighting 12V Transformer - Low Voltage 20W – 60W Rated Electronic Dimmable Transformer for Halogen Lights Lamps Bulbs IP20 Rated

Product ID: 56617762

Details

Brand
National
Mounting type
Surface Mount
Power source
AC/DC
Product dimensions
3D x 12W x
Specification met
CE

⚡60W max power output

📏Compact 118mm length

🔄Auto-reset safety features

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Description

💡 Power your space with precision and safety — transform your lighting game!

BUILT IN SAFETY FIRST - Thermal cut-out and short circuit protection ensure your lighting stays safe and reliable.
COMPACT SLEEK DESIGN - Slim black finish transformer fits discreetly in any modern lighting setup.
PEACE OF MIND WARRANTY - Backed by a 2-year guarantee, because quality and durability matter.
EFFORTLESS INSTALLATION - Pre-terminated cables with included fixing accessories make setup quick and hassle-free.
SEAMLESS DIMMING CONTROL - Compatible with most low voltage and mains dimmers for perfect ambiance every time.

The National Lighting 12V Electronic Dimmable Transformer delivers up to 60W of smooth, dimmable power for halogen lamps. Featuring advanced safety with thermal cut-out and auto-reset, it ensures reliable operation while its compact design and pre-terminated cables simplify installation. Ideal for dry indoor environments, this IP20-rated transformer comes with a 2-year warranty, making it a trusted choice for professional-grade low voltage lighting solutions.

Specifications

ASIN	B071WWDLDW
Best Sellers Rank	1,967 in Lighting ( See Top 100 in Lighting ) 13 in Low-Voltage Transformers
Brand	National Lighting
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (774)
Global Trade Identification Number	05016087923403
Item Dimensions D x W x H	3D x 12W x 2.1H centimetres
Item Type Name	Black Finish 12V Low Voltage 20W - 60W Rated Electronic Dimmable Transformer for Halogen Lights Lamps Bulbs IP20 Rated
Item Weight	0.09 Kilograms
Manufacturer	National Lighting
Manufacturer Part Number	ET60R
Minimum Frequency	50 Hz
Model Number	ET60R
Mounting Type	Surface Mount
Number of Items	1
Number of Packs	1
Power Source	AC/DC
Product Warranty	2 Years
Specification Met	CE
Unit Count	1.0 count

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68.39 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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