We consider a 20 watt ballast to be a worthy investment in the long run. We are here to help you pick the best one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Powergear 20 Watt Ballast READ REVIEW

Best For Good Quality: Buy: Sylvania 20 Watt Ballast READ REVIEW

Best For Small Case Size: Buy: Solus 20 Watt Ballast READ REVIEW

Best For Exact Replacement: Buy: Robertson Worldwide 20 Watt Ballast READ REVIEW

Best For Perfect Fit: Buy: Keystone 20 Watt Ballast READ REVIEW

Best For Rapid Start: Buy: Ge 20 Watt Ballast READ REVIEW

Best With Exact Match: Buy: Keystone Technologies 20 Watt Ballast READ REVIEW

Best Overall: Powergear 20 Watt Ballast

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We are personally inclined towards Powergear 20 Watt Ballast, It is not so pricy, but it overachieves its purpose and is outstanding in important aspects. The powergear 20 watt ballast does the job, It is great for brand name and has a safe design. Start your light fixture with ease and efficiency using the fs-2 fluorescent starter from power gear. This product is ul listed.

The ballast is reliable, works with an instant start and it works great. And, this is best for fast service and it is designed for good fit. Most importantly, the powergear 20 watt ballast is safe, is solid and it fires right up.

Almost all customers quickly discovered that the ballast was an outstanding fluorescent starter. Also, they also found that the ballast is perfect for creating the flicker effect. In conclusion, for most buyers, it was the most suitable.

• This is perfect for the cheap price, is black and it is good for cheap fix.
• This is one of those products that make amazon prime a joy.
• This is superior to those that were available in local chain stores.
• This works in older fixtures that require a separate fixture.

Best For Good Quality: Sylvania 20 Watt Ballast

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Not everyone likes to purchase ballast for their regular usage, but the Sylvania 20 Watt Ballast would be an anomoly. The sylvania 20 watt ballast flipped the switch, is good for good quality and it fits perfectly. Make sure this fits by entering your model number. Also, the ballast works as expected and it is great for brand name.

Above all, the sylvania 20 watt ballast worked right away and it is affordable.

Most customers opine that the ballast is actually 2 packs of 2 starters. Also, they say that the ballast works before going for a ballast replacement. To sum up, many customers have used the Sylvania 20 watt ballast for more than a few months without any issues, and it shows no sign of giving up.

• This works well and it can wait for a great deal.
• Good brand reputation.

Best For Small Case Size: Solus 20 Watt Ballast

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Compared with other ballasts in this category, the Solus 20 Watt Ballast has a convenient design. The solus 20 watt ballast comes with a sound rating, is used for indirect lighting and it is designed for exact replacement. Make sure this fits by entering your model number. This ballast contains no PCBS, is ul & cul listed, and has a class p inherent thermal protection.

Lastly, the solus 20 watt ballast includes mounting holes for ease of access and installation.

Almost all buyers found that the ballast works with the switch on the hood of the tank. Also, a few strongly agree that the ballast is also a great soft light. Overall, many have used the solus 20 wattballast for more than a few months without letup, and it shows no sign of giving up.

• This is built with a power factor and it is great with a normal power factor.
• This works with a 4 pin lamp.
• This is designed to operate a single linear fluorescent lamp.
• This is electronic only because it is used through the outlet switch.

Best For Exact Replacement: Robertson Worldwide 20 Watt Ballast

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The Robertson worldwide 20watt ballast is capable of outshining several other ballasts featured in this list in overall features for the price point. The Robertson worldwide 20 watt ballast is safe, is easy to fit and it is perfect for high power factor. Offering the broadest ballast/led driver line available on amazon. Further, this is normal, very well, it is direct and has a safe design.

The ballast is replaced an old and it is suitable for high power. Further, the ballast works well, fits perfectly and it fires right up. Finally, the Robertson worldwide 20 watt ballast fits well too, is great for ambient temperature and it works very well.

Most buyers agree that the ballast is only $1 more than the local store, but nice paint makes it appear better quality. And, a few strongly agree that the ballast is identical in size to the original & fits well. And, a few strongly agree that the ballast works great with new ballast.

• This does the job and it works perfectly.
• Save by ordering a quik-pak of 10 individually packaged Robertson units. 2p10061.
• This works as advertised and it is great with normal power factor.
• This is for the same wattage bulb, yes.

Best For Perfect Fit: Keystone 20 Watt Ballast

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The Keystone 20 Watt Ballast is capable of outshining several other ballasts featured in this list in overall features for the price point. The keystone 20 watt ballast allows for easy installation, is made for quick delivery and it is great with normal power factor. Make sure this fits by entering your model number. And, it is easy to wire and it fits perfectly.

The ballast is built with power factor, works as expected and it is reliable. In addition, its price is right and it works great. Finally, the keystone 20 wattballast is normal, is black and it is parallel.

Almost all customers opine that the ballast is a perfect replacement for keystone ballast 120tp. Further, a few strongly agree that the ballast is a bit smaller than the old one but fits perfectly.

• They come in small packages plus it is easy to read the schematics.
• This can be configured for one or two t12 f20 lamps.
• Normal ballast factor - normal power factor - operates 2 t12 lamps.
• This is great for brand name and it used for several months.

Best For Rapid Start: Ge 20 Watt Ballast

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Compared with other ballasts in this category, the Ge 20 Watt Ballast has a convenient design. The ge 20watt ballast comes with a sound rating, is suitable for line voltage regulation and it has mounting dimensions. Make sure this fits by entering your model number. In addition, this is normal, is used for remote mounting wire gauges and it can be trusted for good quality.

Lastly, the ge 20 watt ballast is great for direct replacement, is designed for ambient temperature and it is compatible.

Almost all customers agree that the ballast is not recommended to use this ballast as a replacement. In addition, they strongly agree that this ballast ( transformer ) works for the following bulbs and maybe others. Overall, many buyers have used the ge 20 watt ballast for more than a few months without any issues, and it shows no sign of giving up.

• Mount length: (m) 2.8-inch / mount slots: (ms) 0.2-inch.
• Ge's ballasts are among the most energy-efficient ballasts available.
• This is black, is for line voltage and it is direct.
• This has a wire gauge and it connects the wires.

Best With Exact Match: Keystone Technologies 20 Watt Ballast

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Compared with other ballasts in this category, the Keystone Technologies 20 Watt Ballast has a convenient design. The keystone technology 20 watt ballast has replaced an old and it is direct. Make sure this fits by entering your model number. Further, this provides for easy install and it is designed for exact replacement.

Finally, the keystone technologies 20 watt ballast worked like a champ and it works well for direct replacement.

Most customers found that the ballast could be used in a very old fixture. Also, they say that the ballast is perfect replaced sockets with leviton. To sum up, the tone of buyers is very positive and we believe that the ballast suits the purpose.

• This is easy to follow and it allows for easy replacement.
• Keystone kteb-120-1-tp-emi electronic rapid start t12/t8 ballast.
• This is easy to install for a diary guy with some experience.
• This is a functional replacement for the magnetek 546-b-tc-p.