Lighting: How much does the IP65 waterproofing affect efficiency / PPFD?

[RenaissanceBrah]

Does anyone know how much light the waterproofing blocks, on LED lights?

Is it a lot, or just like a 1-2% difference?

I'm going to order 2 Kingbrite lights and wanted to get them with waterproofing.

(I turned my guest bathroom into my grow room, just in case pipe bursts, etc).

 

[Switcher56]

Does anyone know how much light the waterproofing blocks, on LED lights?

Is it a lot, or just like a 1-2% difference?

I'm going to order 2 Kingbrite lights and wanted to get them with waterproofing.

(I turned my guest bathroom into my grow room, just in case pipe bursts, etc).

Isn't the outlet in your bathroom GFI protected, IAW code? Breaker trips automatically, no need for waterproofing

 

[Guest]

Wonder what the coating is, silicone or something. I regret getting it the water proof models. Dust sticks to them.

 

[exploziv]

If your outlet is not protected you could just get a 30 mA differential line protector and an electric box to put it in and run power through it. You'll be protected from all electrical dangers, and from water doing too much (or any at all) damage to your electronics in the growroom. Just remember to push the test button once in a while, to make sure it works.

 

[f-e]

We have 30mA earth leakage detecting plugs and socket adapters in the UK. They are aimed at extension cords you may run out into the yard for electric power tools that perhaps have no protective conductor. More and more things are 'double insulated' meaning a plastic box, so no protective conductor(earth) is used. So if you become that ground wire, the plug (or plug adapter) see's it and disconnects.

It's hard to talk light loss, as coating type and thickness can vary. You can see main brand lights using the 3umol/J 301's can claim to emit almost what unprotected fittings claim.

It's possible to view the IP rating as just applicable to parts where it matters. If the LED board has a separate extra low voltage supply that can't kill you, then there is no need to waterproof that bit. Most boards are coated with a conformal coating and I recall someone getting a waterproof one and being gob-struck as the connectors were no different. I think it's possible the IP65 version may just have a different driver. which won't be that helpful if lots of other exposed electrics are getting wet.

Leaks tend to be weeps. Not outright bursts. I can't remember a plumbing problem that looked like a sprinkler. The house is likely protected by leakage devices at the main board so the heightened risk of working a wet room isn't that great.

 

[RenaissanceBrah]

Wonder what the coating is, silicone or something. I regret getting it the water proof models. Dust sticks to them.

Which model light do you have?

How bad is the dust problem? Do you have to clean it every week or something?

I'll have a filter fan running 10 hrs a day or so, wonder if that would keep the dust down. My apartment in general does get really dusty though.

Here's the light I'm looking at getting.(Kingbrite qb288 v4 - 4000K)

 

[RenaissanceBrah]

We have 30mA earth leakage detecting plugs and socket adapters in the UK. They are aimed at extension cords you may run out into the yard for electric power tools that perhaps have no protective conductor. More and more things are 'double insulated' meaning a plastic box, so no protective conductor(earth) is used. So if you become that ground wire, the plug (or plug adapter) see's it and disconnects.

It's hard to talk light loss, as coating type and thickness can vary. You can see main brand lights using the 3umol/J 301's can claim to emit almost what unprotected fittings claim.

It's possible to view the IP rating as just applicable to parts where it matters. If the LED board has a separate extra low voltage supply that can't kill you, then there is no need to waterproof that bit. Most boards are coated with a conformal coating and I recall someone getting a waterproof one and being gob-struck as the connectors were no different. I think it's possible the IP65 version may just have a different driver. which won't be that helpful if lots of other exposed electrics are getting wet.

Leaks tend to be weeps. Not outright bursts. I can't remember a plumbing problem that looked like a sprinkler. The house is likely protected by leakage devices at the main board so the heightened risk of working a wet room isn't that great.

I'm in a latin american country, so the safety codes are a bit more lax I think... but I think I should be ok. My mars 100W isn't waterproof, and I'll be using it as well.

Do you think it would be much more beneficial to get a non-waterproof one in that case?

What do you think about the dust sticking to the lights as mentioned above, is that a big issue?

(Going to get one of those newer Kingbrites)

 

[f-e]

I don't have the waterproof ones and have no issue I'm aware of. There is some sort of conformal coating, you can't actually touch the LED's or their connections. More importantly, you can't easily catch the edge of one and rip it off, as the coating rounds off the corners. I had suspected the waterproof boards would be exactly the same, but perhaps they are different, if stuff sticks to them.

I would use a soft paint brush or a tickling stick, if I had to. It's going to be once in a lifetime though, if I do.