Window tint · Home and office
ASWF Twilight
- Technology
- Other
- Made for
- Home and office
- Darkness range
- 10% to 34% VLT
Full specs
Source: ASWF Twilight product page, aswf.com (specs as published on 2026-09-28) (opens in a new tab).
| Shade | Visible light transmitted Visible light transmitted. Share of visible light that passes through the glass and film. Lower is darker. | Visible light reflected, outside Visible light reflected, outside. Share of light the window reflects outward: how mirror-like it looks from outside. | Visible light reflected, inside Visible light reflected, inside. Share of light reflected back into the car or room: how much you see your own reflection at night. | Total solar energy rejected Total solar energy rejected. Share of the sun's total energy (heat) kept out. Higher is cooler. | Infrared energy rejected Infrared energy rejected. Share of infrared energy blocked across the whole infrared range. | Ultraviolet blocked Ultraviolet blocked. Share of ultraviolet light blocked, the part that fades interiors and harms skin. | Solar energy transmitted Solar energy transmitted. Share of the sun's energy that passes straight through the glass. | Solar energy reflected Solar energy reflected. Share of the sun's energy reflected back outside. | Glare reduction Glare reduction. How much less visible glare than the same glass with no film. | Solar heat gain coefficient (g-value) Solar heat gain coefficient (g-value). Fraction of the sun's heat that ends up inside, from 0 to 1. Lower is cooler. | Shading coefficient Shading coefficient. Solar heat gain compared with plain 1/8-inch clear glass, from 0 to 1. Lower is cooler. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Twilight 35 | 34% | 11% | 9% | 55% | 71% | 99% | 36% | 28% | 63% | 0.45 | 0.52 |
| Twilight 20 | 20% | 9% | 8% | 64% | 79% | 99% | 25% | 31% | 78% | 0.36 | 0.42 |
| Twilight 10 | 10% | 10% | 6% | 72% | 86% | 99% | 16% | 37% | 89% | 0.28 | 0.33 |
What the column names mean
- VLT
- Visible light transmitted. Share of visible light that passes through the glass and film. Lower is darker.
- VLR out
- Visible light reflected, outside. Share of light the window reflects outward: how mirror-like it looks from outside.
- VLR in
- Visible light reflected, inside. Share of light reflected back into the car or room: how much you see your own reflection at night.
- TSER
- Total solar energy rejected. Share of the sun's total energy (heat) kept out. Higher is cooler.
- IRER
- Infrared energy rejected. Share of infrared energy blocked across the whole infrared range.
- UV
- Ultraviolet blocked. Share of ultraviolet light blocked, the part that fades interiors and harms skin.
- SET
- Solar energy transmitted. Share of the sun's energy that passes straight through the glass.
- SER
- Solar energy reflected. Share of the sun's energy reflected back outside.
- Glare
- Glare reduction. How much less visible glare than the same glass with no film.
- SHGC
- Solar heat gain coefficient (g-value). Fraction of the sun's heat that ends up inside, from 0 to 1. Lower is cooler.
- SC
- Shading coefficient. Solar heat gain compared with plain 1/8-inch clear glass, from 0 to 1. Lower is cooler.
Figures are measured on single-pane clear glass; results on your windows will vary.
Visualize the shades: tint preview and heat rejected
The tint preview shows how each shade darkens the view from inside (visible light transmission, VLT); screens vary, so use it as a guide. Heat rejected is total solar energy rejected (TSER): higher is cooler.
Similar films you can buy here
We don't sell ASWF Twilight. These films in our store are the closest match by type:
- ASWF Moonlight (Non Reflective)From $57.47
- Solar Gard Stainless SteelFrom $67.43
More from ASWF
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