I need to power a large 180W LED lamp that runs on DC so I got this transformer that is 12v × 15amp. But I don't understand the labeling on the terminals.
- There are 2 +V terminals but no -V terminal, why?
- What is the 'com' terminal for and why 2 of them?
- What is that terminal between 'com' and 'N'? I'm guessing ground.
- What grade/gauge/type of wiring must I use for safe and efficient operation?
- Any additional equipment devices needed for safe operations?
- What is the purpose of 'output adjuster' knob? There is a knob in the corner but it doesn't look like it can be adjusted by hand. What kind of tool is needed here? See image below.
My aim is to use AC from the wall and turn it into DC to supply the LED. Please show me the correct path lest I get electrocuted. Somebody told me the 'com' terminals are -V output and said there are 2 of each -V/+V so you don't have to jam a thick wire in and instead use two smaller wires. This is a bit confusing. Please elaborate and whether this step is even necessary.
- If 2x -V/+V terminals present, is total current/voltage split between the two? Can I use just one set of terminals to get full voltage & current, or must I use both? What happens if I use just one set?
Please help. I don't want to hire an electrician for a job that may be very easy. Neither the LED nor the power supply came with any manuals or supporting documents. LED manufacturer said to use the above power supply.
Additional info on power supply,
Link to actual product page
Item description is found at this link