Scope and starting point
The HLG-240H data sheet carries a 4 February 2026 revision date. Its model table contains different rated output currents and power ratings; 240 W is not a universal value for every voltage version. This note records the source revision, not a new product launch or a completed test.
Selection notes
Match the complete model suffix, rated current and constant-current voltage window. Allow for cold and hot LED-string voltage, temperature derating, dimming compatibility and enclosure conditions. This preliminary comparison is not an isolation, wiring or electrical-safety approval.
Keep a reproducible record
Save the complete part number, source revision, operating point and the reason for each decision. Keep calculated examples separate from observed results. A measurement report needs its sample identifier, instrument and calibration details, stabilization, ambient conditions, raw record and uncertainty statement. Do not replace a missing value with zero or a typical value with a guaranteed limit.