u/gotchock

Hello all,

I have a 10mm width LED strip with 60 led/m density (technically it's 3x60 led/m but 1 channel might be activated at a time, so I can't go for higher density, the strip is already packed).
I'm looking for a good diffuser that can avoid the "dotted" effect very common with this kind of density. Changing the strip to COB or higher density is not possible with the technology I'm using.

Most of the standard products I find are about 10mm deep with a PC cover, and that's not enough to show a uniform light line, mostly because the diffuser is cheap and thin in my opinion.

I tried a few silicone flexible channels that perform better (double diffusion layers inside), not against the idea but:

• It's way more expensive for the light output reduction (I can accept higher price with proper diffusion and light transmission quality)
• I still need an aluminum channel to fit it cleanly in a straight line so I need to find a matching one
• These are usually bulkier (I wanna keep a quite narrow profile, around 10-12mm width)

I read I should use a 15mm deep channels, but not easy to find and I was hoping I could keep smaller channels with a higher optic quality.

Any tips ? Thank you !

Hi !

I (M36) am looking for a partner to play:

• Tennis or Badminton
• 1 or 2 times Monday to Thursday, the goal is to target same day/hour every week
• 1h Slot between 18h and 20h
• Sukhumvit area (ideally around Asok/Phrom Prong). I found some great courts on soi 24, need to check ) but I can potentially be flexible
• Level: not beginner, but not really expert either, my service is so bad lol. I'd say intermediate ?

The goal is to be regular (make it a routine), not play just from time to time when available.

Hit me up !

Hello,

I am quite new to lighting design/specification for a restaurant/club of a friend and I'm struggling a bit to understand where is the sweet spot between "light accuracy" and "warm/nice feeling/mood lighting" when looking at very, very warm lighting for bars, clubs, or luxury spaces that want to go really warm to ember red before bed for example.

Note that task lighting is handled separately in this case, to ensure proper visibility on needed surfaces. This is mostly for ambient / accent lighting.

Technologically speaking:

• it's easy for me to maintain CRI >95 with R9>85 between 2700K - 2000K
• but 2000K is still quite white/yellow for entertainment spaces that need to go lower into ember red, especially for festive dining who want to shift mood after dinner.
• While it's possible going lower down the blackbody locus with Red/Amber/RGB (Red+Green), I found out it becomes very hard to maintain CRI/R9/TM30 sub 2000K, as these are not "full spectrum" (little to none in this range), so the heavy lifting on accuracy has to remain on the full spectrum leds.

Here below is what I can manage to mix. I can probably improve a bit more on DUV on the lower end, but visually this looks very good and gives a "warm" saturated feeling I believe is interesting in entertainment, but I can see I'm losing accuracy.

How do professional lighting designers usually handle this ? Does it look acceptable or am completely out of touch with this hardware ?

Thank you for your help

CCT (K)	DUV	Rf	Rg	CRI	R9	LambdaP (nm)
2684	-0.0008	94.9	102.4	97.2	86.3	634
2211	-0.0015	93.9	103.6	95.5	88.3	639
1996	-0.0005	94.8	101.7	95.9	85.1	-
1812	-0.0023	90.0	105.2	92.3	78.6	635
1671	-0.0070	77.0	115.7	86.0	70.2	631
Red	-	0.5905	-	-	-	629