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for use in a 110-120v fixtures. Consult a licensed electrician prior to purchasing. Bulbrite LED20T8/830K 4' Linear LED T8 Bulb, 32W Fluorescent Equivalent, G13 Bi-Pin Base, Soft White Bulbrite's Linear LED T8 bulbs feature no warm-up time, ...
A: Standard fluorescent, compact fluorescent and some LED bulbs are not dimmable. You must select a light technology that is specifically designed for dimming. That should be indicated on the product page. Light technology that can't be dimmed will likely indicate somewhere in its packaging that it's unable to perform that function. Incandescents are still the most common in use today. They are usually dimmable too. But they're also the least energy efficient and are to some extent being phased out. The other main light technology, halogen, is fully dimmable and it lasts longer when dimmed.
Q: Which light bulbs are the most energy efficient?
A: Because the technology is constantly improving and government standards are asking for more efficiency on a regular basis, these numbers are a moving target. But let's talk about it in general terms. Incandescent bulbs, the most traditional and still most widely used, are the least efficient and are largely being phased out because of it. Compact fluorescents (CFL) are around 10X more efficient. The LED is the energy efficiency champion at almost 5X more efficient than CFLs. Plus, LEDs last much longer.
A: Lumens equal brightness, so the more lumens the brighter the light will be. Forget watts, and concentrate on lumens. Incandescent bulbs are being phased out but the standard replacement was the 60-watt bulb. It was rated at 800 lumens. LEDs offer 800 lumens with far less energy consumption (around 12 watts). Compact fluorescents are at around 15 watts. Because they use less energy, they can offer more lumens as the wattage grows.
Q: What's the difference between lumens and watts?