Mean Well HLG-240H-42A Power Supply 240W 42V - Adjustable

Yes. The A suffix means the HLG-240H-42A has a built-in potentiometer for adjusting output voltage and current. This lets you dial in the exact drive level for your 42V LED boards, which is useful when matching the driver to specific LED forward voltage requirements in grow light arrays.

Yes. The IP65 water-resistant rating protects against dust and low-pressure water jets, making it appropriate for covered outdoor installations like canopies, awnings, or soffits. At 240W and 42V, it provides ample power for extended runs of 42V LED strip. For fully rain-exposed mounting, consider the IP67-rated HLG-240H-42.

Yes. With 240W at 42V and 5.72A, it powers large arrays of 42V LED sign modules. The adjustable output allows precise voltage matching to the module string, and the IP65 rating is well suited for semi-enclosed sign cabinets that are not fully submerged or rain-exposed.

Yes. The built-in potentiometer lets you trim the output voltage within the CC voltage range of 21-42V and correspondingly adjust current. This is helpful when your LED load requires less than the full 240W, allowing you to lower the drive point for optimal efficiency and thermal performance.

Divide 240W by your strip's wattage per meter. For example, a strip rated at 12W/m would allow 20 meters (240W / 12W per meter = 20m). A denser strip at 24W/m would allow 10 meters. Always check your strip's rated power per meter and keep total load at or below 240W.

The IP65 rating makes it dust-tight and resistant to low-pressure water jets from any direction, which is sufficient for weatherproof outdoor enclosures, junction boxes, or control cabinets. For locations where the driver could be submerged or directly exposed to heavy rain without an enclosure, the IP67-rated HLG-240H-42 is a better choice.