Novice here. I am looking to install (a lot of powerful) LED lights in my kitchen and I want to understand the implications of putting PSUs in my lighting circuit.
I currently have 15 halolite tube lights (16W each). That's 240W @ 240V (so one amp of current, right ?)
I'm thinking about bright LED strips which are 21W per metre. About 10m should be plenty - 210W in total.
Seems quite similar. But the ampage of these 12V strips is 1.75A per metre ... so 17.5A in total ! Now I'm more than a little wary of putting "so much current" through a lighting circuit !
I'll split the installation into two halves - with a 120W PSU (or "LED driver") on each. Each PSU talks about "10 Amps 240v to 12V DC Transformer (120 Watts)".
So each puts out 10A @ 12V creating 120W of power ... but what does it draw from the input side ? Assuming no losses, it must need 120W from a 240V supply which would be 0.5A for each driver, yes ?
So is it safe to use two of these PSUs in my lighting circuit and will they only draw a total of 1A (which is only the same as two of the old 60W light bulbs) ?
Cheers
Graham
I currently have 15 halolite tube lights (16W each). That's 240W @ 240V (so one amp of current, right ?)
I'm thinking about bright LED strips which are 21W per metre. About 10m should be plenty - 210W in total.
Seems quite similar. But the ampage of these 12V strips is 1.75A per metre ... so 17.5A in total ! Now I'm more than a little wary of putting "so much current" through a lighting circuit !
I'll split the installation into two halves - with a 120W PSU (or "LED driver") on each. Each PSU talks about "10 Amps 240v to 12V DC Transformer (120 Watts)".
So each puts out 10A @ 12V creating 120W of power ... but what does it draw from the input side ? Assuming no losses, it must need 120W from a 240V supply which would be 0.5A for each driver, yes ?
So is it safe to use two of these PSUs in my lighting circuit and will they only draw a total of 1A (which is only the same as two of the old 60W light bulbs) ?
Cheers
Graham