Tube Size (Diameter)
≈ 10 in (250 mm)

30% Federal Tax Credit Eligible
Solatube eChoice products exceed the performance standards established in the American Recovery and Reinvestment Act of 2009 that require skylight products to meet a maximum U-Factor rating of 0.30 and Solar Heat Gain Coefficient (SHGC) of 0.30. For more information visit our Federal Tax Credit Information Center.

EDCS (Effective Daylight Capturing Surface)
This represents the surface area of the dome that collects and redirects sunlight. For comparison, a clear dome with no lens on a typical 10 inch tube system has an EDCS of 78.5 square inches. 160 in2 (1032 cm2)

Light Coverage Area
150-200 ft2 (14 - 19 m2)

Potential Tube Length
20 ft + (6 m+)