SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulb

The 1700K color temperature is a unique color point which exhibits a fiery, red glow. The color is similar to the red glow of a match flame, or an incandescent bulb dimmed down to 5%.

A typical incandescent bulb at full brightness has a color temperature of 2700K, while a candle flame has a color temperature of 1900K. As its name suggests, SUPERWARM™ LED lamps have an extremely warm color temperature!

By lowering the color temperature to such a low level, we are able to reduce the blue light content at a spectral level.

Not sure if you'll like it? Take advantage of our 30 day free-returns policy to try out the different colors. If you don't like it, simply let us know and we'll send over a return label.

Bulbs marketed as "amber" and "red" will almost always use a monochromatic LED, which emits light in a very narrow bandwidth that only contains amber or red wavelengths. As a result, all objects will appear amber or red, with no ability to distinguish objects' colors. In fact, most monochromatic LED sources have a CRI rating near 0.

Our SUPERWARM™ bulbs, on the other hand, utilize a multi-phosphor broad spectrum approach. Although the color may appear to be a deep orange or reddish color, the spectrum still contains a wide range of wavelengths, including yellows, greens and even a tiny amount of cyan and blue wavelengths. As a result, these lamps are able to emit a low-blue light spectrum, without compromising on color accuracy as evidenced by the 83 CRI rating.

Our objective in developing the SUPERWARM™ LED spectrum was to limit blue light output as much as possible, while balancing the need for color accuracy. We chose to include a very small amount of blue wavelength energy in order to provide the necessary spectral breadth for color acuity.

The amount of blue light that this bulb contains is miniscule - far less than traditional "circadian safe" light sources such as incandescent bulbs and even candles. The M/P ratio for this bulb is 0.274, compared to 0.5 and 0.3 for incandescent bulbs and candlelight, respectively.

For a truly blue-free light source, we would recommend a monochromatic amber or red LED solution (as mentioned above). The downside, of course, is that you will end up losing the ability to distinguish colors, as all objects will take on a pure amber or red shade.

For such a low color temperature bulb, an illuminance level of 0.5 footcandle (5 lux) is generally sufficient. As such, one bulb will cover approximately 130 square feet of space. Simply divide the square footage of your space by 130 to get the number of bulbs needed. For example, a 260 square foot area would be calculated as 260 divided by 130, which equals 2 bulbs.

Unfortunately, these bulbs are not dimmable. This means that they cannot be used on any electrical circuit which has a dimmer installed, even if you keep the dimmer at the maximum setting at all times.

These bulbs do not emit any ultraviolet radiation. The light output covers the entire visible spectrum between 420 nanometers and 800 nanometers, but does not go below (UV-A) or above (infrared).

These A19 bulbs have a standard screw-in base (E26 / E27), which is the same type that has been used for more than a century.

As long as the lamp fixture is designated for an A type or A19 type, these bulbs will be compatible.

Although these lamps have the brightness of 60 watt incandescent lamps, these lamps have an actual power draw of only 10 watts. Therefore, they can safely be used in fixtures that have a max rating of less than 60 watts.

The voltage range of this product is AC 90-240V and 50-60 Hz, which covers all global voltages. As such, they can safely be used internationally without any issues. The internal circuitry adjusts for the input voltage automatically, and does not affect the light output or performance of the lamp.