F885 2' x 4' Flat Sheets
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Please call for shipping options to AK, HI, PR and International destinations or if you require expedited delivery.

F885 Full Spectrum and UV Fluorescent Light Filters

Our Flat Sheet Fluorescent Light Filters Create a More Balanced and Natural Light

  • Absorbs virtually all UVA and UVB up to 380 nanometers
  • Absorbs 80-99% of UVA up to 390nm and 50-80% up to 400nm
  • Exact dimensions of light filters are 22.5 inches x 46.5 inches
  • Creates color-balanced light from unbalanced fluorescent light
  • Eases visual strain by reducing glare & through light color balancing
  • More than 6% increase in CRI on some of the best 5000K lamps
  • More than 40% increase in CRI with many brands of cool fluorescent lamps
  • Decreases light output, but increases visual acuity
  • NOT SELF SUPPORTING—must lay atop diffuser or egg crate grid
  • 1 at $45 / 2-4 $39 / 5-9 $35 / 10-49 $29 / 50+ $24.95 each
  • Minimizes fading on textiles, art, and paper products
  • Slows spoilage of foods caused by fluorescent light
  • Free UPS shipping in the lower 48 United States

Our premium 2' x 4' 885 flat sheet filters and 685 tube filters are placed over standard fluorescent lights to produce the same full spectrum effect (a balance of red, orange, yellow, green, blue, indigo, and violet found in sunlight). This will not only improve color rendering but also reduce glare. In addition, these filters cut 100% of UV radiation below 380 nanometers.

For those who already understand the benefits of full spectrum lighting, our 885 light filters bring many advantages over expensive full spectrum bulbs. Bulbs, which typically only remain full spectrum for 5,000 hours (or approximately a year), are costly to replace and don't offer any UV protection. In fact, most of these bulbs have increased UV when compared to a standard cool white lamp.

Although the filters decrease the overall light output, visual acuity is improved. The filter creates scotopically enhanced light by lowering certain wavelengths so that the critical blue-green component is more prominent. Despite less light, with the enhanced blue-green spectrum, the pupil is made smaller, allowing the eye to work more effectively with less light and therefore reducing the overall area of that light rays strike the back of the retinal surface. This causes the depth of field to increase and visual acuity is improved. This is especially useful for environments such as libraries, museums, the food industry and textile industry, where UV and visible light rays may be damaging, but visual acuity is still critical.

Numerous studies have proven the benefits of full-spectrum and natural day lighting. It can help those suffering from CVS - computer vision syndrome, SAD - seasonal affective disorder, and lupus erythematosus. Full-spectrum lighting improves performance in academic settings and students had more positive moods, developed fewer dental cavities, had better attendance, and better growth and development. They also suffered from less hyperactivity.  While our light filtering system can’t convert fluorescent lighting into pure sunlight, it can vastly improve its quality and enhance your work, academic or institutional environment.

We would love for you to experience it for yourself. Please contact us for a trial run in a small section of your office, factory, or school. We suggest using the sleeves for fixtures with three or less 4' lamps and flat sheets for 4 lamp 2' x 4' fixtures. We also have more detailed information regarding these filters.

GSA Ordering and Price Information. Limited to GSA customers only. GSA buyers click here.

Professional installation is always recommended for all wall-mounted Ergomart products. Improper installation may result in injury or damage. Consult Ergomart technical support regarding any mounting concerns or questions.


  • 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 685 filter is 20x more effective in absorbing UV rays when compared to a standard clear prismatic filter
  • Makes light appear closer to perfect full spectrum light, daylight, so things appear the same both indoors and out
  • Reduces glare which can relieve eyestrain, headaches, and even general fatigue
  • Up to 40% of fading is caused by UV rays, which can be greatly reduced by these filters
  • Eases the effects of computer vision syndrome including blurred vision, neck pain, and dry, irritated eyes
  • Balances the blue-green portion of the spectrum creating a scotopically enhanced light
  • Helps lupus sufferers by absorbing the UV rays that can cause flare-ups
  • Natural daylight used in retail increased sales by up to 40%
  • Natural daylight used in classrooms increased test scores by an average of 21%

    *AK, HI and PR Note: To determine shipping options, please contact us at 214 742 6066 or sales@ergomart.com.

    **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.
    Professional installation is recommended.

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