## 0-10V dimming Explained - What is 0-10 volt dimming? How does it work? Installation of 0-10v

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[Music]

okay so one of the most common questions

we get is about zero to ten volt dimming

why do we need it what is it how does it

work what I need to think through etc

etc so hopefully in today's video I'm

gonna demo someone to zero to ten volt

and explain some things to walk through

so first thing is why do we use it the

reason is is that LEDs require a

constant power of DC power so when

actually when you're going with an AC

and here it's actually converting this

into DC for the LEDs and any sort of

water or structural power restriction on

that is going to cause ease to flicker

and hop you've probably all had cheap

LEDs that do that as you go from in

output it only gets worse and so there

is no such thing as dimmable high output

bulbs we have to switch to dimmable

fixtures and use the 0 to 10 volt

dimming to do that and you'll see that

it's quite effective and simple so what

is zero to ten volt dimming on

astuteness it happens to be our next gen

to model 300 watt parking-lot light i

have the standard three power wires here

as well as two additional wires coming

out that are just simply positive and

negative and so your standard powered as

well as a 10 volt signal coming out of

here and if the light has a 10 volt

signal goes to full brightness if the

light has a 5 volt signal goes to 50%

brightness and that's why it's called

zero to ten because of that control so

very simple but elegant system and as

we'll see it works very well now next

thing to know is there's two different

types of switches and the way to think

through the actual installation and

using it over here happen to have our

high bay elite series linear lights and

this happens to be a what's commonly

called the magic switch or an unpowered

switch because there is no line voltage

going into it it is simply all low

voltage despite having no power going

into it you'll see that it actually dims

down very well and back up again

the camera we're just using a phone

camera here for this demo purpose so you

might get a little flicker on there but

in reality it's very clean tower doesn't

flicker or any other nice thing is it

does go to off all again without a power

that's just an interrupting the signal

and so therefore it's able to control

the light now it seems great but

unfortunately in practice this doesn't

work all that well and the reason for

that is a couple fold number one there

is no standard spec on this so you get

some incompatibility issues and you know

the reason is that all the driver makers

are now switching from a 0 to 10 volt to

a 1 to 10 volt which doesn't allow you

to dim to off and the reason for that is

asking the driver to hold power while

setting that low voltage signal is

really just a lot of work for the driver

and concern its lifespan so most of the

major driver manufacturers have one to

ten which doesn't make this on-off work

where this can be great as if in a

parking lot environment where you can't

run new wiring underground anyway from

your two wires you can put one of these

on a pole at a lock box still have your

timer or master control switch somewhere

else and still enable you to dimness it

has a memory mode so if you have it a

50% brightness and then go ahead and

turn the power back on again it's gonna

remember that 50% right so enables you

again backyard basketball court or

parking lot enables you to go up in

brightness on the LEDs dim them to where

you want to and then do your set up that

way over here we have the DVS TV and

very confusing nomenclature from Lutron

happen have a couple Lutron's but

everyone makes these switches this one

happens to be powered so a classic power

in power out setup and still using the 0

to 10 volt so again same idea dims down

quite effectively as well as we know the

on/off power is going to work now over

here I do have my clamp meter on you can

see we're drawing a full 2.4 amps and I

got about a harmful tear so that will be

right on with a 300 watt unit

remember that hamsas watts of revolt so

running 208 277 what do we have we'll

change that number but as we dim that

back down you can see that we get that

number down to about 0.36 which that's

about 50 watts or about 20% of the power

so one of the common questions we get is

does this actually say V power e because

if it has constant full voltage the

answer of course is yes because LEDs

only take the power they need so by

using that dimmer you are going to save

that additional power so dimming it half

50% will save you have the power so me a

nice additional savings an area we don't

need that extra brightness so now last

thing to keep in mind possibly most

importantly here is that because it is a

powered switch it's gonna have a watt or

amp restriction on it this one is not

very high it's only 450 watts on a 300

watt parking on light or 180 watt high

bay light you are going to go through

that pretty quick they do have a higher

one that's 8 amps probably a few others

out there a little bit higher but keep

that in mind you're planning how many

fixtures can you put for a switch

theoretically the 0 to 10 volt stuff can

you know about 20 pictures and Twitter

Peter run before you start to get into

some problems but the reality is you're

gonna probably run into power

restrictions before you do that so a

couple additional switches again these

are low voltage wires but keep in mind

they are running a signal in there and

so best to keep a heavily shielded wire

and make sure that these things aren't

guarding any interference such that that

shield is that signal stays constant

otherwise you're gonna get some changes

there as that signal gets interfere with

so that is your a 10 volt dimming

explained with some different options

and some things to think about when

you're doing the installation

you