Sun tubes
Sun tubes
Sun Tubes(日光采集放大反射管)
Key words：sun tubes, sun pipe, tubular skylight, sun skylight, natural lighting, light tubes, solar tubes
Highlights
优点：
Bring light into rooms that do not have windows or skylight access. The interior of the ''tube'' magnifies the light so that the fixture in the ceiling looks like there is actually a bulb inside. Guests often look for a light switch to turn it off when they leave a bathroom, closet, or laundry area.
让没有窗户和天窗的房间也能充满阳光。该装置可固定在屋顶上，顶部的拱形结构可以更大限度地采集日光，其内部的特殊设计可以将采集到的日光放大反射进房间，使房间看起来更加明亮。
The ROI Calculation is based on 14" diameter. Flexible or rigid tubing allows the unit to go around virtually any attic obstructions unlike other lighting systems, which saves you money. The ROI Calculation is based on factoring in the savings offset of purchasing, installing, and powering savings two light fixtures, and their bulbs over ten years.
当该管的直径为14英寸（35.56cm）时，产品造价300美元，一次投资，每年即可节省45美元，投资回报率达15%。
The small roof ‘dome’ lets the
light into a ‘tunnel’ that bounces
it down to the ceiling fixture.
其顶部的拱形结构可以让日光进入管中，并被放大反射到房间。
For installation, the hole in the attic can easily fit between existing roof rafters.
安装简单，可以打通屋顶，在房间现有的阁楼结构中寻找空间。
Spend $300 now and SAVE $45 each year... ROI = 15%
一次投资300美元，每年即可节省45美元…回报率达15%