--- product_id: 73761891 title: "300W Low Voltage Landscape Transformer with Timer and Photocell" brand: "goodsmann" price: "HK$2374" currency: HKD in_stock: true reviews_count: 8 category: "Goodsmann" url: https://www.desertcart.hk/products/73761891-300w-low-voltage-landscape-transformer-with-timer-and-photocell store_origin: HK region: Hong Kong --- # 3 flexible timer modes dusk-to-dawn photo sensor weather-resistant metal shield 300W Low Voltage Landscape Transformer with Timer and Photocell **Brand:** goodsmann **Price:** HK$2374 **Availability:** ✅ In Stock ## Summary > 🌟 Illuminate smarter, not harder — your outdoor lighting’s new best friend! ## Quick Answers - **What is this?** 300W Low Voltage Landscape Transformer with Timer and Photocell by goodsmann - **How much does it cost?** HK$2374 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/73761891-300w-low-voltage-landscape-transformer-with-timer-and-photocell) ## Best For - goodsmann enthusiasts ## Why This Product - Trusted goodsmann brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Seamlessly powers all low-voltage lighting types—LED, halogen, and incandescent—making upgrades and expansions effortless. - • **Smart Dusk-to-Dawn Sensor:** Automatically powers your outdoor lighting at sunset and off at sunrise, eliminating manual resets and saving energy. - • **Precision Lighting Control:** Set your landscape lights to turn on/off exactly when you want with 3 versatile timer modes including dusk-to-dawn automation. - • **Built to Brave the Elements:** Durable metal housing with a weather shield protects against sun, rain, dust, and extreme outdoor conditions for long-lasting performance. - • **Hassle-Free Installation & Safety:** Easy wall-mount design with clear output terminals plus built-in overload and overheating protection for peace of mind. ## Overview The GOODSMANN 300W Low Voltage Transformer converts standard 120V AC to safe 12V AC, featuring a built-in timer with three flexible modes, a replaceable dusk-to-dawn photo sensor, and a weather-resistant metal casing. Compatible with all low-voltage landscape lights, it offers easy installation, overload and overheating protection, and reliable automated lighting control for professional-grade outdoor ambiance. ## Description Product description 6 VERSATILE MODES Built in Timer and Clock, You Will Love the Flexibility of This Timer The transformer has the dusk to dawn sensor that detects dusk and dawn to turn the lights on and off. The simplicity of this transformer as it has a digital clock to timed on/off, or turn on at dusk and automatically turn off on the set time/4/6/8/10 hours later. The length of the power cord of the photosensor reaches 5.08ft for greater placement flexibility. WIDELY COMPATIBLE AND SAFELY Intuitive Interface Designed for Easy Use The transformer will convert 120V AC household voltage to 12V AC safety voltage, it will disconnect power in case of overload or overheating. The low voltage transformers are compatible with low voltage halogen, incandescent, and LED lights. The output terminal on the bottom the for connecting cables and there are two hanging holes on the back for installing transformers. GOODSMANN LOW VOLTAGE LANDSCAPE LIGHTS 50FT String Lights Landscape Spotlight 2PK Landscape Lights 6PK Path Lights 8PK Path Lights Review: "SENSOR" did NOT work well for turning ON/OFF when in "Auto" Mode on the first unit. - This unit is GREAT having many options for operating landscape lighting, I finally had to replace a Malibu "Manual Timer" having a "turning wheel clock" with pieces to locate for ON and OFF times around the perimeter of the "wheel". That unit operated perfectly for over twenty years, but I had to manually MOVE the ON/OFF pieces multiple times during the year with many more hours of daylight during summer months. The BEST "feature" of this new unit in my opinion is having a SENSOR with the unit set to "AUTO" Mode so your lights will turn ON at dusk and OFF at dawn "automatically", so no more having to reset times for the summer months!!! I mounted the SENSOR on a block wall both facing UP, and facing OUT towards the west. At "sunset" with the original SENSOR (facing UP) turned the lights ON at dusk, but they STAYED ON even at 10:00 AM the next morning on a sunny day in Arizona! The company immediately sent me a replacement SENSOR and it also had problems turning the lights both ON and OFF when set to "AUTO" Mode and mounting the replacement SENSOR in two different directions. I then gave up on the "AUTO" mode with the SENSOR and resorted back to setting the clock for both ON and OFF times no longer using the "AUTO" mode. This is a GREAT unit, but their "SENSOR" and "AUTO" Mode still needs work!!! Having difficulty with their SENSOR in the ARIZONA SUN does not bode well, let alone those who reside in less sunny states!!! Also, their "Instructions" have a "template" for drilling the mounting holes, and the "template" is NOT the same distance for the mounting holes on the actual unit! SO, MEASURE THE MOUNTING HOLES ON THE UNIT BEFORE DRILLING - DO NOT USE THE "TEMPLATE" FOR DRILLING THE MOUNTING HOLES!!! UPDATE ON 3/23/19: After promptly receiving a "Sensor" replacement from Goodman that did not solve the "AUTO" Mode problem, Goodman IMMEDIATELY sent me an entire replacement Transformer unit after they had tested it out themselves prior to shipping it out. My problem has been resolved and I must commend Goodman for their incredible attention to my issue. Goodman IMMEDIATELY responded to my review comments above without me having to contact them, they beat me to it! It is pretty rare to receive that kind of IMMEDIATE attention from a seller to their customers! I am very please with this product after having a rocky start, I would highly recommend this Lighting Transformer. Review: Great product and customer service - I have 4 of these for different zones on my property. I got the first one 6 years ago and have been expanding ever since. Not only are these great products, the customer service is beyond fantastic. I was moving one box and messed up the photo sensor. I contacted them and got immediate assistance to help me resolve the issue I caused. I can’t say enough good things about the product and now I can attest to the quality of service. ## Features - BUILT IN TIMER AND CLOCK: You will love the flexibility of this timer. Three mode choices: You can use the built-in clock to control the landscape lights on or off at any time you set; The transformer will turn on at dusk and then turn off at the time you set; The transformer will turn on at dusk and automatically turn off 4/6/8/10 hours later - REPLACEABLE PHOTO SENSOR: The transformer has a dusk-to-dawn sensor that controls landscape lighting will turn on automatically at dusk and off at dawn. The 300W transformer is made of durable metal, convert 120V AC household voltage to 12V AC safety voltage - EASY INSTALLATION: This unit is easy to use and works right out of the box with easy instructions. There have 2 hanging holes on the back for hanging the transformer. On the bottom of the back, there is an output terminal for connecting cables - BETTER LONGEVITY: It has overheating and overload protection to protects the transformer. It has a weather shield on the front to protect the control panel from fade because of the sun, rain, dust, and other severe weather conditions - COMPATIBLE WITH ALL LOW VOLTAGE LIGHTS: The GOODSMANN low voltage transformers are compatible with all low-voltage landscape lighting systems, including the halogen, incandescent, and LED lights. Enjoy 12 months replacement and after-sales services for using the low voltage transformers ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BSQHN3Z | | Best Sellers Rank | #99,254 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Outdoor Low Voltage Transformers | | Brand | GOODSMANN | | Brand Name | GOODSMANN | | Customer Reviews | 4.1 out of 5 stars 211 Reviews | | Manufacturer | Goodsmann Group | | Model | 9920-0300-01 | | Mounting Type | Wall Mount | | Part Number | 9920-0300-01 | | Power Source | Corded Electric | | Specification Met | ETL, UL | | UPC | 818100021906 | ## Images ![300W Low Voltage Landscape Transformer with Timer and Photocell - Image 1](https://m.media-amazon.com/images/I/712YtKhM4xL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ "SENSOR" did NOT work well for turning ON/OFF when in "Auto" Mode on the first unit. *by J***. on March 12, 2019* This unit is GREAT having many options for operating landscape lighting, I finally had to replace a Malibu "Manual Timer" having a "turning wheel clock" with pieces to locate for ON and OFF times around the perimeter of the "wheel". That unit operated perfectly for over twenty years, but I had to manually MOVE the ON/OFF pieces multiple times during the year with many more hours of daylight during summer months. The BEST "feature" of this new unit in my opinion is having a SENSOR with the unit set to "AUTO" Mode so your lights will turn ON at dusk and OFF at dawn "automatically", so no more having to reset times for the summer months!!! I mounted the SENSOR on a block wall both facing UP, and facing OUT towards the west. At "sunset" with the original SENSOR (facing UP) turned the lights ON at dusk, but they STAYED ON even at 10:00 AM the next morning on a sunny day in Arizona! The company immediately sent me a replacement SENSOR and it also had problems turning the lights both ON and OFF when set to "AUTO" Mode and mounting the replacement SENSOR in two different directions. I then gave up on the "AUTO" mode with the SENSOR and resorted back to setting the clock for both ON and OFF times no longer using the "AUTO" mode. This is a GREAT unit, but their "SENSOR" and "AUTO" Mode still needs work!!! Having difficulty with their SENSOR in the ARIZONA SUN does not bode well, let alone those who reside in less sunny states!!! Also, their "Instructions" have a "template" for drilling the mounting holes, and the "template" is NOT the same distance for the mounting holes on the actual unit! SO, MEASURE THE MOUNTING HOLES ON THE UNIT BEFORE DRILLING - DO NOT USE THE "TEMPLATE" FOR DRILLING THE MOUNTING HOLES!!! UPDATE ON 3/23/19: After promptly receiving a "Sensor" replacement from Goodman that did not solve the "AUTO" Mode problem, Goodman IMMEDIATELY sent me an entire replacement Transformer unit after they had tested it out themselves prior to shipping it out. My problem has been resolved and I must commend Goodman for their incredible attention to my issue. Goodman IMMEDIATELY responded to my review comments above without me having to contact them, they beat me to it! It is pretty rare to receive that kind of IMMEDIATE attention from a seller to their customers! I am very please with this product after having a rocky start, I would highly recommend this Lighting Transformer. ### ⭐⭐⭐⭐⭐ Great product and customer service *by R***Y on April 24, 2026* I have 4 of these for different zones on my property. I got the first one 6 years ago and have been expanding ever since. Not only are these great products, the customer service is beyond fantastic. I was moving one box and messed up the photo sensor. I contacted them and got immediate assistance to help me resolve the issue I caused. I can’t say enough good things about the product and now I can attest to the quality of service. ### ⭐ Goodmann transformer not working *by R***R on October 15, 2025* I have two of these transformers. The first still works fine after years of service. The second one purchased in June now works intermittently. The main control knob is faulty and works on the timer only after playing with it and wiggly it around. After contacting them (since the warranty is 1 yr) they want me to box it safely and return it on my own penny (a very heavy transformer) so they can repair it. Meanwhile I have no transformer for my outdoor lights. I told them that was unsatisfactory and that I would return it as soon as a replacement arrived. They said they could not do that so I will not be buying any additional Goodmann products. I am extremely unhappy with them and their customer support. Be careful what you purchase from this company. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/73761891-300w-low-voltage-landscape-transformer-with-timer-and-photocell](https://www.desertcart.hk/products/73761891-300w-low-voltage-landscape-transformer-with-timer-and-photocell) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-10-29*