Vero Reflector Usage - PLEASE READ

Hello RIU Members,

I wanted to let you know about a potential issue in operating Vero lights with reflectors. It has been brought to our attention by a few Vero owners that there may be issues related to possible melting of the LEDIL Angelina polycarbonate reflector and holder.

Recent Integrated sphere testing of the Vero COBs showed a loss of almost 10% in PAR wattage using the reflectors vs not. Additionally, and most importantly, they showed a significant heat build up near the COB surface, which is exacerbated by the reflector.

You are able to run the light closer to the canopy with even PAR spread. The light emits at a roughly 130° angle from the COB surface as opposed to 90° with the reflectors.

As a result, we made a change to the design, ceasing offering the reflectors going forward. I have been recommending to customers to remove both the reflectors and holders. Affected customers should contact us immediately - we will send you shorter, 6mm screws, to use in place of the longer screws holding the reflector holders in place.

Please let me know if you have any additional questions and/or concerns.

And most importantly, if you own a COB grow light or know a friend who does, please check your optics. As a general rule we recommend periodic checks of the light (electrical connections, COB surface cleanliness, potential issues) to ensure efficient, and safe, operation.

Have a good day.

Best Regards,
Dan

Good to see you are following up on this, if people purchased from China they would have no idea if there was a problem. This is why I always encourage people to buy local

Think about secondary optics with heat build up . My wife always says bare is best, ill leave that open for dawg's interpretation..

I had a conversation with bjb and AAStuchi a few years ago regarding heat issues with COBs and holders. One thing they never thought about is the heat generated by photons comming out of the COBs. Although they test for heat generated by the cob internally they do not take into account that the photons emitted from the cob also generates alot of heat, if you hold your hand in front of a cob when on you can feel heat and that's what I am referring to by heat from photons. They had not done any work on it back then and didn't even think about it. Aa stuchi said they maybe able to mix ceramics into the plastic to over come it but nothing has been done so far to solve this. The only cob holders that I know of that won't have an issue with this is bender and wirth, as they do not use injection moulded plastic. There are also some metal holders around. When running cobs over 100W then I would recommend bender and wirth holders although I have not had a problem with a plastic holder @150w but I know others have when going upto 200W. As efficiency increases this will be an issue that holder manufacturers need to address.

Exactly. It's time people stop using reflectors. Very unfortunate how a few misinterpreted test results from years ago still have such an adverse impact on led lights to this day.