Lens and Reflector Optics for COB

What Optics do you use in your DIY Lamp

  • No Optics

    Votes: 132 45.4%

  • Glass Lens

    Votes: 58 19.9%

  • Reflector

    Votes: 118 40.5%

  • Silicone Lens

    Votes: 23 7.9%

  • Other

    Votes: 6 2.1%
  • Total voters
    291
ttystikk

ttystikk

Well-Known Member
sixstring2112 said:
This is why i asked my last question lol.you speak in absolutes as if you been there ,done that.but in this case its speculation on your part not having run the angelines.i have run them,but not lenses so you wont see me say one is better than the other.but based on the sphere tests i did see i have removed them.i would bet the lenses test similarly ,where there is around 6 or 7% losses from a bare cob.
Click to expand...
It's a reflector. They aren't that different.
 
ttystikk

ttystikk

Well-Known Member
sixstring2112 said:
This is why i asked my last question lol.you speak in absolutes as if you been there ,done that.but in this case its speculation on your part not having run the angelines.i have run them,but not lenses so you wont see me say one is better than the other.but based on the sphere tests i did see i have removed them.i would bet the lenses test similarly ,where there is around 6 or 7% losses from a bare cob.
Click to expand...
So in other words you just want to disagree.
 
hillbill

hillbill

Well-Known Member
I am running lenses on my Photon 180 and bare Vero 18s on my Optic and reflector w90 Vero 29. I like those big lenses as they really smooth out the footprint but maybe parts of my canopy are a bit bowl shaped and bare COBs are great for that. These COBs put out a ton of photons and are already directional by nature. Not either/or at my house.
 
sixstring2112

sixstring2112

Well-Known Member
ttystikk said:
So in other words you just want to disagree.
Click to expand...
maybe lol.no man i just wanna know why you told the other guy lense are better than reflectors or bare cobs.now we know its just you being biased towards your own setup lmao.just like when i see a guy talk shit about de gavitas and they never ran one,i wont hesitate to call it out as speculation since i have firsthand knowledge in all types of lighting not just 1 or 2 lamps i can usually spot the bullshitters a mile away,you already know that though haha.
im under the impression if @Stephenj37826 built your lights with dog shit smeared on the lenses and told you its the best,brightest cob,you would tell us all how much better your lights are because stephen made em for YOU .now that last part was kinda douchy but you get my point i think (:
 
ttystikk

ttystikk

Well-Known Member
sixstring2112 said:
maybe lol.no man i just wanna know why you told the other guy lense are better than reflectors or bare cobs.now we know its just you being biased towards your own setup lmao.just like when i see a guy talk shit about de gavitas and they never ran one,i wont hesitate to call it out as speculation since i have firsthand knowledge in all types of lighting not just 1 or 2 lamps i can usually spot the bullshitters a mile away,you already know that though haha.
im under the impression if @Stephenj37826 built your lights with dog shit smeared on the lenses and told you its the best,brightest cob,you would tell us all how much better your lights are because stephen made em for YOU .now that last part was kinda douchy but you get my point i think (:
Click to expand...
Stop putting words in my mouth. I made a design choice based on running bare vs lenses, and vs reflectors.

The lenses substantially outperformed the other two options.

It's fine if you don't agree, but you DID ask my opinion, so kindly stop whining that I didn't say what you wanted to hear- and then talk shit about bias.

Maybe you should think about WHY I spent extra to make sure all my chips have lenses before running your mouth?

And to think I was going to ask you to design a COB LED frame for me.

Lastly, the only lights @Stephenj37826 made for me are the quantum board fixtures. .. and they have lenses too!

But go on with your bad self, you already have all the answers so you don't need mine.
 
Greengenes707

Greengenes707

Well-Known Member
ttystikk said:
The lenses substantially outperformed the other two options.

It's fine if you don't agree, but you DID ask my opinion, so kindly stop whining that I didn't say what you wanted to hear- and then talk shit about bias.

Maybe you should think about WHY I spent extra to make sure all my chips have lenses before running your mouth?
Click to expand...
All I see is your opinion with absolutely no data or facts behind it. You could easily have provided it...but you deflect and make some vague statement with no example of said statement.

So we all know you are just blowing trying to justify what you choose...out of 1 choice I might add.

So since you're such a genius and know everything, it shouldn't be hard for you to answer some basic question.

So how did you perform the comparisons?
What were the differences the plants showed to make a claim of substantially better?
What does substantially better mean?
What was the final weight difference?
What meters and measurement devices were used?
What measurement metrics were chosen?
How many runs did you test for?
What cultivar(s)?
 
NapalmD

NapalmD

Well-Known Member
I personally like them bare especially if growing in a tent. I could see lenses and reflectors having their place in a high bay, high powered fixture though.
My Onyx and Photon had lenses and while they're good at focusing and spreading light at the same time I just don't think they're needed in a reflective area and all of these LED's from my experience perform best when almost kissing the girls.
 
ttystikk

ttystikk

Well-Known Member
Greengenes707 said:
All I see is your opinion with absolutely no data or facts behind it. You could easily have provided it...but you deflect and make some vague statement with no example of said statement.

So we all know you are just blowing trying to justify what you choose...out of 1 choice I might add.

So since you're such a genius and know everything, it shouldn't be hard for you to answer some basic question.

So how did you perform the comparisons?
What were the differences the plants showed to make a claim of substantially better?
What does substantially better mean?
What was the final weight difference?
What meters and measurement devices were used?
What measurement metrics were chosen?
How many runs did you test for?
What cultivar(s)?
Click to expand...
The man asked my opinion, he didn't ask for documentation.

You're a BIG TIME light maker, do your own fucking homework.
 
R

rocho

Well-Known Member
Hi! I can't find available any vero29 gen7 rrflector holder.

Could you help me to find some cree ideal holder that can be adapted as substitute of c13584?

Maybe c14036? 502100? 502300? Which above these, if any?
Thankyou very much and have a good day!
 
R

rocho

Well-Known Member
robincnn said:
Ledil F13838 Reflector and Kingbrite's KB-D82-90RF Reflector
Tested on cxb3590 cd 3500k 1.39amps with 50-2303CR holder and 50-2300AN reflector adapter

View attachment 3576238 View attachment 3576239 View attachment 3576241 View attachment 3576242View attachment 3576240

View attachment 3576244

Left: Kingbrite's KB-D82-90RF $0.80
Right: Ledil F13838 Reflector $4-$10

LEDIL reflector is thinner plastic, more flexible so locks easily. KB-D82-90RF is slightly more thick and takes just a little longer to fit.
The outer size is the same for both reflectors. The ledil has rings/steps that are missing on KB-D82-90RF. The width of base(as highlighted in red) is more in KB-D82-90RF, which means reflector walls angle is more, which means more center focused.

View attachment 3576237


Ledil seems better due to more even light distribution.
But the light distribution differences are small and the price difference is huge. KB-D82-90RF looks like a great cheep option. You can always swap them out with original Ledil reflectors if you do not like KB
Click to expand...
Sory again, are these informations still update or would i consider to buy an angelina reflector instead of kingbrite?
 
You must log in or register to reply here.
Top