OUR GRADIENT FILTER SLEEVES CONTROL LIGHT INTENSITY AND UV RADIATION

GRADIENT SLEEVES ROTATED AT DIFFERENT ANGLES


GR380 Transparent face pointing down: reduces light by about 35% GRX380 Transparent face pointing down: reduces light by about 40%	GR380 Partial blockage of light: reduces overall light output by about 40% GRX380 Partial blockage of light: reduces overall light output by about 45%	GR380 Substantial blocking of direct light: reduces light by about 45% GRX380 Substantial blocking of direct light: reduces light by about 55%	GR380 Black side facing down: reduces light by about 60% GRX380 Black side facing down: reduces light by about 70%

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Ergomart Gradient Filters allow the user to control fluorescent lamps that are too bright in two ways. The sleeve dot matrix pattern graduates from transparent to opaque; the sleeve may be rotated to reduce the light output of fluorescent tube lights. The second major benefit is the user can actually direct light down, left or right. The opaque (black) side can be pointed downward to knock out about 75 percent of the light. We provide two performance levels of this product: STANDARD—simple UV filtering; PREMIUM—Full Spectrum / UV filtering / glare reducing.

For those who suffer from migraines, these products can reduce the frequency of or even eliminate migraine headaches for some. Both the standard and premium gradient filters reduce the amount of light emitted from a fluorescent lamp and therefore reduce the relative flickering effect in environments where there are secondary non-flickering light sources. The GRX380 has the added benefit of improving the quality of light.

GR380—STANDARD GRADIENT FILTER

GR380 Standard Fluorescent Light Filter

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STANDARD GRADIENT FILTER DELIVERS THESE BENEFITS

Controls lighting levels & intensity
Direct light by simply turning the sleeve
Eliminates all UV below 380 nanometers
Choose T8 or T12 Sleeves in four-foot lengths
May reduce or eliminate migraines in some users
Just $12 each when purchased by the case of 24
UPS Ground shipping is included—no hidden charges
1 - $35 each / 2 to 9 - $18 each / 10 to 23 - $15 each

GSA buyers click here.

*AL HI and PR Note: To determine shipping options, please contact us at 214 742 6066 or sales@ergomart.com or you may select "I will use my shipping account"

**Canada/International Note: Listed shipping prices are for shipments within the lower 48 United States. International Customers ordering outside the US, please contact us for shipping options. 214 742 6066 or sales@ergomart.com or you may select "I will use my shipping account"

Call for pricing on 8 foot special order sleeves

GRX380—PREMIUM GRADIENT FILTER

GRX380 Premium Fluorescent Gradient Filter

Call for pricing on 8 foot special order sleeves

PREMIUM GRADIENT FILTER PROVIDES ADDITIONAL BENEFITS

Our Premium GRX380 provides all the benefits of the GR380 plus

Reduces veiling and specular glare
Has slight tint that is nearly imperceptible
Greatly improves Color Rendition Index (CRI)*
Greatly improved probability of Visual Comfort**
May reduce or eliminate migraines in some users
UPS ground shipping included—no hidden charges
1 - $40 / 2 to 9 for $22 each / 10 to 23 for $18 each
Just $15 each when purchased in a case of 24 sleeves

GSA buyers click here.

*AL HI and PR Note: To determine shipping options, please contact us at 214 742 6066 or sales@ergomart.com or you may select "I will use my shipping account"

MORE NOTES ON THE PREMIUM GRADIENT FILTER

* The Color Rendition Index (CRI) is a way scientists determine the light quality in terms of color accuracy based on the color temperature of the light source. Generally speaking the higher the rating, the better the light.

** The Visual Comfort Probability is a scale devised to predict discomfort from glare.

Since the Premium Gradient Filter improves the color temperature of a typical (cheap) cool white lamp from about 4200 Kelvin to about 6200 Kelvin, the CRI quotient moves from about 61 (poor) to about 92 (very good). The filter allows certain critical wavelengths to pass through the filter that enhance the users ability to actually see better with less light. This scotopic effect means that the physiology of the human eye discerns with less effort when working with certain parts of the spectrum under lower light conditions. Specifically, lower overall light levels with spectral energies relatively higher in the region just above 500 nanometers means that the eyes work more efficiently and the overall result can mean lower energy costs. The Filter utilizes end caps that create space between the lamp and the sleeve. The polycarbonate sleeve is designed to stand up to heat generated by the fluorescent lamp for years of trouble free use. Sleeves are designed to be reused when lamps are switched out. The GRX380 Filter conditions spectral light output much closer to the color balance found in natural sunlight creating light that has vastly improved accuracy in color rendering. In short this is one fantastic and inexpensive way to improve the quality of cheap cool white lamps while reducing the overall light levels in a work area.

When you have questions, we have answers: 888 420 3200 or 214 742 6066
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Most products ship UPS ground to the lower 48 states. Some items such as desks and tables will incur additional charges; the customer will be contacted about those charges before the product is shipped.

Many products may be purchased online with Quick Ship options; others may or may not be available for Quick Ship—call or email us with your requirements. Most non Quick Ship products arrive within 11 business days. Chairs take 3 to 4 weeks. Call or email for assistance for orders to Hawaii, Alaska, Puerto Rico or Canada. For shipping cost on international orders, please email or call 214-742-6066. We ship to APO and FPO addresses.

For comments or suggestions regarding Ergomart, email webmaster@ergomart.com. For questions and comments about our products and services, email service@ergomart.com.