Are T-8 lights and T-12 lights safely interchangeable?
2014年1月9日 · T12 lamps with a ballast for T8 lamps might cause the ballast to go bad sooner, if T12 lamps (rated at 430 mA) draw more current than what a T8 lamp is rated at (265 mA) from your ballast rated for T8 lamps. If your T* ballast is designed so as to keep lamp current close to 265 mA, you should not have that sort of worry.
How can I tell whether a fluorescent ballast is T8 or T12?
2018年10月6日 · Is there a way to tell from a ballast's specifications (voltage, wattage, how many lamps it handles, etc.) whether it is a T8 or T12 ballast? Or do I need to look for the manufacturer's part number to figure it out? The stock sizes of 4' bulb are F40T12 and F32T8. T8s are relatively new. Both make about the same light, the T8 is more efficient.
Will a T8 Light Work on a T12 Ballast? | DoItYourself.com
2010年6月10日 · When posing the question can a t8 light work on a t12 ballast, the short answer is no. Because the ballast is specific to the wattage of the bulb, and not necessarily the size, it doesn't matter that the tube is the same length, what matters is that a t12 ballast will push more power than a t8 light is designed to handle.
How to Change a T12 Ballast to a T8 Ballast - HomeSteady
2017年2月21日 · Replacing your T12 fixtures with T8 fixtures is more cost effective than changing out the ballasts, but if you invested a lot in your T12 fixtures and have developed a sentimental attachment, then you may want to invest in changing the ballasts and retaining the fixtures.
Older fixtures typically use the T12 (1.5” diameter) bulbs, whereas the current standard is the T8 (1.0” diameter) bulb. While the electrical sockets (“tombstones”) of these bulbs are identical, i.e., interchangeable, the bulb types require different ballasts and different schematic hook-ups in order to function properly! Warning:
Are T8 and T12 ballast interchangeable?
While some electronic ballasts are designed to be compatible with both T8 and T12 tubes, it’s not a universal truth. Using a T8 ballast with a T12 tube can result in reduced lifespan and potentially uneven lighting. Conversely, a magnetic ballast meant for T12 might not efficiently drive a T8 tube, leading to flickering or sub-optimal ...
How to Replace a T12 Ballast with a T8 | DoItYourself.com
2010年1月28日 · It is important to note that T12 type ballasts have been discontinued due to poor efficiency and are actually being phased out in favor of the T8 variety, so replacement is the recommended procedure when dealing with a bad T12. Step 1 – Identifying the Ballast and Tubes
Can T8 LED tube lights be used in T12 fixtures?
Waveform Lighting's T8 LED tube lights feature compatibility with all ballast configurations (ballast, ballast bypass single ended, ballast bypass double ended), so they can safely be used in T12 fixtures as long as the T12 ballast is bypassed or removed.
T8 bulbs in a T12 fixture or vice versa. - Electrician Talk
2014年11月5日 · A T12 ballast on a T8 bulb will over drive the T8 causing it to fail early on. A T8 ballast on a T12 won't give you adequate light (if it lights at all) because its being under driven. A T8 slides right into a standard T12 socket like butter.
lighting - Can I upgrade existing T12 fluorescent fixtures to T8 just ...
Yes, T8 ballasts are lighter weight, and may be more efficient, but do not last as long as the old T12 ones. Have you considered using LED bulbs instead? Most designs for straight tube fluorescent replacements just bypass the ballast -- taking it out of the circuit completely. They should save more energy than the T8.
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