AC/L and AC/N is the AC line and neutral (respectively) from the wall outlet to the input of the power supply.
HLG power supplies are IP67 rated but should be installed in a weatherproof enclosure for use in outdoor applications.
GLLS light fixtures are only compatible with constant voltage power supplies.
The largest power supply GLLS sells is the HLG-320H power supply.
Mean Well’s table below lists how many HLG power supplies you can connect to one Miniature Circuit Breaker S200 series (manufactured by ABB).
You can connect multiple devices to one power supply if it does not exceed the maximum current draw. The maximum current varies between HLG models.
You can install the power supplies in an enclosure. It’s important, however, that there is a form of heat dispersion. You do not want the maximum ambient temperature for the power supplies to rise above 90°C.
You should not stack power supplies on top of each other. They should be 10-15cm apart to keep proper ventilation around the power supplies.
The distance between the power supply and light fixture is dependent on the length and current draw of the fixture. In theory, the fixture can be any distance away from the power supply if you increase the AWG of the wire. This is to prevent a voltage drop of more than 10% of the fixtures required voltage. Read more about …
HLG power supplies rated for 100W or lower have a Class 2 rating. Read the difference between Class 2 and Class II in our Tech Talk post.