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Solatube DS Highest Performance Guarantee

All day long. All year long. For ten years

With so many competitors claiming to outperform or have similar performance to the DS range by Solatube, the question should be asked from competing manufacturers to conclusively prove that their product can outperform.

Our Guarantee.
To date our highest performance guarantee has not been challenged. Solatube, are so confident with their DS range product testing and proven results that we guarantee highest performance or your money back.

Our challenge.
Solatube, is so confident in its product performance that it is challenging any competitor. If proven incorrect we will PAY FOR YOUR SKYLIGHT INSTALLATION and for the competing manufacturers testing.

To Make a Claim.
If you believe that you have found a qualifying product that outperforms your Solatube DS Skylight, please send the below terms and conditions to the competing manufacture within 30 days of purchase. Then request the competing product manufacturer to send a written claim to Solatube, accepting the challenge prior to testing.

Terms & Conditions

Solatube, guarantees that when using the Natural Effect Lens**, the 160DS and 290DS Solatube Skylight Daylighting Systems deliver more Average Daily Light on an Annual Basis (as determined by the methodology set forth below) than other passive tubular skylight devices having the same “L over D ratio” (as defined below) that are widely commercially available on the market at the time of your purchase.

Limitations on Guarantee
Guarantee offer applies only to products purchased for personal use. Offer is only valid for products assembled and installed according to manufacturer’s specifications by a Certified Installation Consultant. Offer excludes new products manufactured by Solatube International, Inc. The guarantee excludes all other products, except Solatube Skylights160 DS and 290 DS products, manufactured by Solatube International, Inc. Offer expires one year from product purchase date.

Methodology for Determining Average Daily Light on an Annual Basis (ADLAB)
The ADLAB is determined by measuring the light output of a system at each hour during daylight hours on the 21st day of March, June, September and December. To determine the ADLAB, these measurements are then added together and divided by the total number of measurements taken. To compare ADLABs, the systems compared must have the same ratio of Length of daylighting tube divided by the Diameter of the tube opening. This is called the “L over D ratio.” Testing must be completed by a certified testing agency.

Requests must be postmarked within 30 days of purchase date. Solatube reserves the right to audit any testing or to retest to confirm results.

*Limited Guarantee

**The Natural Effects Lens does not come standard in all kits.

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