Hi all sifu,

Any sifu here answer my questions based on the image below? I've a 13-14inch beam from ceiling, so I want to even out my L-Box same level with the beam, but the contractor says too low the T5 wont be able to light to the ceiling, hence, will cause the room not bright enough. Any idea?

I don't understand your drawing, I think you misunderstood the L-Box concept.

If worried that the distance too big, you can lower your ceiling also right. Which means doing flat plaster ceiling over the area surrounded by the L-box.

How it should look like then?

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Added on May 24, 2012, 2:47 pmYes, but that's extra cost and the ceiling become lower. Haha.

This post has been edited by babyekc: May 24 2012, 02:47 PM

There's something you can do DIY, I put pieces of inverted 'U' shape metal to prop the T5 tubes 1-2 inch higher so more light would emitted and not wasted amongst the L-box. You won't see the tubes from underneath and definitely makes it brighter.

U can always add down light in addition to ur t5 light wat...

I hv the same problem, i plan to use downlight and t5, i will not install flat ceiling to lower down my ceiling, i need to keep it for my ceiling fan! Mind to share your renovation cost? I m still comparing the price...

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Added on May 24, 2012, 8:36 pmThis is my 1st post in lowyat

This post has been edited by Olivia1988: May 24 2012, 08:36 PM

i dont understand your drawing. Why ur wall so thick. anyway, assuming i understand ur drawing, why not do L-box rectangular shape, and then the small square area do a flat board. The T-5 are spreaded in even amount at both sides..

The bottom of the L box can still be level with the bottom of your 13-14 inch beam ,
an option is that the L box opening are higher near the ceiling, thus the "chin" of the L box will be longer than regular L box.
There is no rule that the L box opening must be of any standard distance from the bottom of the L box base.

Can i open a hole in the middle of flat ceiling? In order to install my ceiling fan...