---
product_id: 32267523
title: "Malibu 120 Watt Power Pack with Sensor and Weather Shield for Low Voltage Landscape Lighting Spotlight Outdoor Transformer 120V Input 12V Output 8100-9120-01"
brand: "malibu c"
price: "$177.07"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/32267523-malibu-120-watt-power-pack-with-sensor-and-weather-shield
store_origin: US
region: United States of America
---

# 5 advanced timer modes 120W max power output Weather-resistant & corrosion-proof Malibu 120 Watt Power Pack with Sensor and Weather Shield for Low Voltage Landscape Lighting Spotlight Outdoor Transformer 120V Input 12V Output 8100-9120-01

**Brand:** malibu c
**Price:** $177.07
**Availability:** ✅ In Stock

## Summary

> 🌟 Power your nights with smart, safe, and stylish illumination!

## Quick Answers

- **What is this?** Malibu 120 Watt Power Pack with Sensor and Weather Shield for Low Voltage Landscape Lighting Spotlight Outdoor Transformer 120V Input 12V Output 8100-9120-01 by malibu c
- **How much does it cost?** $177.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/32267523-malibu-120-watt-power-pack-with-sensor-and-weather-shield)

## Best For

- malibu c enthusiasts

## Why This Product

- Trusted malibu c brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built-In Safety First:** Overload protection and auto-reset safeguard your investment and keep your landscape lighting running smoothly.
- • **Rugged Weather Shield:** Durable, waterproof design built to brave rain, snow, and sun—your outdoor lighting’s best defense.
- • **Dusk-to-Dawn Automation:** Detachable photocell sensor ensures your lights turn on and off exactly when needed—no manual hassle.
- • **Tailored Lighting Control:** Choose from 5 smart modes to perfectly match your outdoor lighting needs and save energy effortlessly.
- • **Precision Timer Flexibility:** Set lights to run 4, 6, 8, or 10 hours after dusk for customized ambiance and energy savings.

## Overview

The Malibu 120 Watt Power Pack is a robust outdoor transformer designed for low voltage landscape lighting. It features five versatile timer modes, built-in overload protection with auto-reset, and a detachable dusk-to-dawn sensor for effortless automation. Engineered with weather-resistant materials, it ensures reliable performance and longevity in any outdoor environment, making it the perfect energy-efficient solution for professional-grade landscape lighting.

## Description

Full description not available

## Features

- Advanced Setting Modes: Our landscape transformer offers a comprehensive range of five modes, ensuring unparalleled functionality and energy efficiency. Including (a manual on/off mode) (on at dusk, off at dawn) (on at dusk, off at 4/6/8/10 hours) (on/off at the specific time you set) (on at dusk, off at the specific time you set), which is sufficient to meet any of your needs and maximize energy savings
- Enhanced Protection Mechanisms: Our transformer incorporates built-in circuit protection to safeguard against overload, automatically disconnecting the power supply to prevent device damage and prolong product lifespan. Additionally, the memory function preserves the selected mode during power outages, ensuring uninterrupted operation upon restart.
- Effortless Dusk-to-Dawn Sensing: Featuring a detachable photocell sensor, our landscape lighting system seamlessly transitions between day and night operation. Simply set the knob to AUTO mode, allowing the sensor to activate lights at dusk and deactivate them at dawn, simplifying setup and optimizing energy usage.
- Precision Countdown Timer: Offering light-controlled timing functionality, our transformer includes a countdown timer with options for 4, 6, 8, or 10-hour activation periods. In this mode, lights automatically turn on at dusk and switch off after the designated duration, promoting energy efficiency and convenience.
- Weather-Resistant Design: Constructed from durable, waterproof, and high-performance plastic materials, our transformer is engineered to withstand various adverse weather conditions. Its corrosion-resistant properties ensure longevity and reliability, making it suitable for prolonged outdoor use in any environment.
- Smart Protection & Usage Guidelines: While our transformer can handle a maximum load of 120W, we recommend using of 90W for best results. This practice prevents the system from running at full capacity, ensuring greater stability and significantly extending the product's lifespan. Moreover, the built-in reset switch automatically activates in case of a short circuit. After troubleshooting, a simple press of the reset button will have your system running again safely.

## Product Details

- **Brand:** Malibu C
- **Power Source:** Corded Electric
- **Product Dimensions:** 3.4"D x 4.7"W x 7.5"H
- **Mounting Type:** Wall Mount
- **Specification Met:** ETL

## Images

![Malibu 120 Watt Power Pack with Sensor and Weather Shield for Low Voltage Landscape Lighting Spotlight Outdoor Transformer 120V Input 12V Output 8100-9120-01 - Image 1](https://m.media-amazon.com/images/I/71w-fp8i-NL.jpg)

## Available Options

This product comes in different **Wattage** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to program, other than most others!
*by L***A on January 30, 2025*

Worked right away, so easy to program! The last system took days to figure out how to program and was never reliable. This one has been up and running for a few weeks now and was easy to program nigh time and morning for on and off, and also has a photocell for auto turn off for dusk and dawn. Happy so far!

### ⭐⭐⭐⭐⭐ Great brand!
*by G***N on December 29, 2023*

I am replacing a very old Malibu transformer with this one. The old one has served me for over 8 years. Only reason I’m replacing it is because the timer stopped working. I’ll keep it for a backup and hope this one makes it as long. Now that lights are LED, 200 watts is probably overkill. I’d need 100 2 watt lights to max this out. Crazy since I used to install night lighting and the average bulb light was 25 watts each. Times are changing. Like that it has a dusk sensor to automatically turn on.

### ⭐ Seems To Be New Old Stock
*by A***R on March 3, 2023*

Malibu apparently hasn't made these since 2014. You may wish to google that for yourself. My unit failed within about two months of purchasing it. The failed portion of the unit is the circuit board under the unit's control panel; very likely the rechargeable coin cell battery (LIR2032) that is SOLDERED TO THE CIRCUIT BOARD! All batteries fail eventually. Why in the world would someone design a circuit board with a battery soldered directly to it, instead of a battery HOLDER soldered to it, which would allow replacement of the battery.This unit was well within the 1 year warranty period, so I contacted Amazon. Amazon was quite helpful to me as far as contacting the "manufacturer". The Amazon representative told me it was very likely I would not have to return the unit; the manufacturer would just send me another one. I wish that had been the case, but no, first the manufacturer wanted me to send pictures, which I did. Then the manufacturer asked me to return the unit, and to be sure to pack it up carefully to prevent damage. It would have been one thing to drop by the UPS Store so they could scan a return code, pack it up, and ship it. To be fair the "manufacturer" emailed me a return shipping label, so returning it would not have cost me anything, other than the time and effort of uninstalling the unit, packing it carefully, and mailing it, only to be sent another unit manufactured in 2014 or earlier, likely with another battery near failure.So I emailed the "manufacturer" to say that I didn't want to return the bad unit, but did want them to send me a replacement. A representative of the "manufacturer" called me to discuss this. The short version of what he told me was that they used to send out warranty replacement units without requiring the customer to return the failed unit, but they don't do that anymore. Well ok then.The unit is fairly easy to disassemble. I was fairly positive that the actual transformer within the unit was fine, but that the circuit board and associated control relay were bad; very likely because of a failed battery. So, I opened the unit, wired around the circuit board and relay, kept the overload protection device in the circuit, and put it back together. This resulted in a unit that stays on as long as it's plugged in. It's plugged into a smart outdoor outlet which allows me greater timing flexibility than the timer that was part of the unit.Then, for no particularly good reason, I ordered a replacement battery, and a battery holder, from Amazon. I'll desolder the battery from the circuit board, and solder the battery holder in its place, which should result in a fully functional unit with a significant design improvement.The bottom line, literally, is that I definitely wouldn't recommend purchasing this outdoor lighting power supply.Update:Upon further investigation, the LIR2032 battery on my unit's circuit board tested at 3.7 volts, so there is no issue with the battery. This likely makes sense, primarily because the battery's funtion is to maintain the unit's settings during power outages, so it's not critical to the unit's normal, connected to power, operation. However, my unit's display, which is part of the circuit board, continues to flash on and off, and generally act like it is not receiving power steadily. The remaining possible culprit is the unit's relay, which is connected to line voltage (120VAC), and transmits that line voltage to the transformer when the circuit board tell it to. The rub is that the relay ALSO provides power to the circuit board via the 3 pin connector from the relay to the circuit board. As far as I can tell that relay is not available anywhere :( So, as before this update, my unit's transformer is wired direct, but only receives power when the outdoor smart outlet it's plugged into sends it power.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-23*