
CLNR79 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.99 | Condition is New, 120V Magnetic Ballast for 7W OR 9W 2-Pin CFL Lamp -Keystone CLNR7-9-, shipping cost = $17.41 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $7.00 | Condition is Used, 120V Magnetic Ballast for 7W OR 9W 2-Pin CFL Lamp -Keystone CLNR7-9-, shipping cost = $9.42 | 100.0% |

Introducing the Keystone CLNR79 120V Magnetic Ballast, a versatile and reliable solution for powering your 7W or 9W Compact Fluorescent Lamps (CFL) with 2-pin bases. This ballast is engineered to deliver optimal performance, ensuring your lamps operate at their best and provide consistent, high-quality light output.
The Keystone CLNR79 is a magnetic ballast, meaning it uses an electromagnet to regulate the electrical current flowing through the lamp. This design is ideal for simple installation and replacement in various lighting applications, making it a popular choice for both residential and commercial settings.
This ballast is designed to work with 120V AC power and can handle 7W or 9W CFL lamps. The 2-pin base is a standard configuration for many CFLs, making this ballast highly adaptable and suitable for a wide range of applications.
One of the most significant advantages of the Keystone CLNR79 is its robust construction. It features an industrial-grade design, ensuring durability and longevity. Each ballast is subjected to rigorous testing to ensure it meets the highest standards of quality and reliability.
The Keystone CLNR79 is also energy efficient, helping you save on your electricity bills. It is designed to minimize power losses during the conversion process from AC to DC power, ensuring that the majority of the electrical energy is used to produce light, rather than being wasted as heat.
With its simple design, reliable performance, and energy efficiency, the Keystone CLNR79 120V Magnetic Ballast is an excellent choice for anyone looking for a dependable and cost-effective solution for powering their CFL lamps. Whether you're looking to illuminate your home, office, or industrial space, this ballast is an excellent addition to your lighting system.
In summary, the Keystone CLNR79 120V Magnetic Ballast is a versatile and robust solution for powering your 7W or 9W CFL lamps with 2-pin bases. With its reliable performance, energy efficiency, and industrial-grade construction, it is an excellent addition to any lighting system.
Buying a Keystone CLNR79 120V magnetic ballast for 7W and 9W 2-pin CFL lamps (CLN-7-9) can be a good option for those who need to use these specific types of lamps and do not have the budget for electronic ballasts. Here are some pros and cons to consider before making a purchase:
Pros:1. Compatibility: This magnetic ballast is specifically designed for 7W and 9W 2-pin CFL lamps, ensuring a perfect fit and reliable operation.
2. Affordability: Magnetic ballasts tend to be less expensive than electronic ballasts, making them a more budget-friendly option for those looking to save on costs.
3. Simplicity: Magnetic ballasts are simpler in design than electronic ballasts, which can make installation and maintenance easier.
Cons:1. Inefficiency: Magnetic ballasts consume more energy than electronic ballasts, which can result in higher electricity bills over time.
2. Limited lifespan: Magnetic ballasts have a shorter lifespan than electronic ballasts, which can lead to more frequent replacements.
3. Heavier and bulkier: Magnetic ballasts are heavier and bulkier than electronic ballasts, which can make them less convenient to install in certain locations.
In conclusion, the Keystone CLNR79 120V magnetic ballast for 7W and 9W 2-pin CFL lamps can be a practical and cost-effective solution for those who require these specific types of lamps and do not mind the trade-offs in energy efficiency and lifespan. However, if energy efficiency and longer lifespan are top priorities, it may be worth considering an electronic ballast instead. Ultimately, the decision depends on the specific needs and budget of the user.
Recommendation:If you require 7W or 9W 2-pin CFL lamps and are looking for an affordable and reliable option, the Keystone CLNR79 120V magnetic ballast could be a good choice for you. However, if you prioritize energy efficiency and longer lifespan, you may want to consider investing in an electronic ballast instead. It's important to weigh the pros and cons carefully and make an informed decision based on your unique circumstances.
Details:
Keystone clnr-7-9 fluorescent 120v magnetic ballast for 4w 5w 6w 7w 8w 9w lamp.
specifications faclighting:
- brand: Keystone
- mpn: Clnr79
- part type: Ballast Lamp
- country of origin: United States
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
payments faclighting:
- other
- credit card: diners-club
- wallet: google-pay
seller faclighting:
- city: sacramento, california
- rating: 100.0%
- # reviews: 183
returns faclighting:
- policy: no returns
offer faclighting:
- availability: in stock
- options: ship-to-home
- sold #: 8
- best offers: true
- prices: $7.00–$14.99
- item condition:
- New
- Used
- started: february 28, 2026
- in stock #: 2
shipping faclighting:
- transit: 4-9 days
- class: standard
- carrier: ups
- service: ups ground
- type: calculated
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- KTEB-240-UV-TP-PIC: BALLAST, Keystone
- KTSB-E-0432-14-UV-A: BALLAST, Keystone
- KTSB-E-1040-14-UV-A: BALLAST, Keystone
- KTEB-228HE-UV-PS-SL: BALLAST LAMP, Keystone Technologies
- KTEB-226-UV-RS-DW: BALLAST KIT, Keystone

