What is the difference between the four models of GLMX720 series LEDs?

This GLMX720 model comparison separates the four versions in our original comparison chart from the GLMX720 now described on the product page. The name alone is not enough to establish which LED configuration you are being offered. The archived GLMX720, PRO, GEN 2 PRO and H records differ from the current Samsung LM281B listing.

Use the tables below to identify the document you have, understand the historical differences and prepare questions for a quotation. The older figures are supplier records, not new measurements or confirmation that every version remains available. Before ordering, match the exact model, revision and supplied specification to the quotation.

What the original four-model record says

The original chart describes four fixtures with a nominal input of 720 W. Its main distinction is the LED configuration, together with the listed photon output. These entries reproduce the chart's model distinctions for identification, not a present-day performance ranking.

The accompanying old prose identifies the GEN 2 PRO white LEDs as Samsung 301B. That is an archived description. It should not be substituted for the LM281B identity on the current listing, even though both names include Samsung.

Historical supplier chart: its application, certification and operating entries are not confirmation of current availability, approval or installation requirements. Request current documents for the exact quoted model.

How the current listing differs

The current GLMX720 product page was checked on 20 September 2026. It identifies a Samsung LM281B version with a different diode count and listed output from the older base-model chart.

These are seller-listed specifications, not an independent laboratory verification. A shared power rating does not make the current product identical to any of the archived versions. Confirm the configuration on the actual order instead of combining the most favourable values from different pages.

What do the spectrum illustrations establish?

The original page names the spectrum used for the first three variants FSCV and the H variant FSCH. The two illustrations below are retained as part of that historical record.

The plots show relative spectral shapes. They do not supply a current test report for the LM281B fixture, a coverage map or a measured crop result. Ask for the spectrum document that belongs to the product being quoted if that comparison matters to your project.

Compare output and coverage separately

PPF describes photon output; it is not an area. Photon efficacy relates output to electrical input, as defined in the DLC terminology reference. Neither figure alone establishes how evenly light reaches a particular surface.

For a footprint comparison, request a distribution map with its measurement conditions. The coverage-map guide explains what to look for. Do not use the highest value in the archived chart as proof that one model is the right purchase for every space.

Which documents should accompany a quotation?

Request the model and revision, a dated specification, included contents, supported controls and installation instructions. If a certificate or qualification is claimed, ask for the current record identifying the exact configuration. The archived chart alone does not verify a present listing or a South African rebate entitlement.

Keep service terms separate from predicted life. The current TheOneGrow warranty policy describes a one-year commercial warranty against manufacturing defects under its stated conditions. An old statement about years of expected use is not an extension of that warranty.

For help identifying an older unit, send TheOneGrow the model label, serial number if present, purchase record and relevant photographs. That provides a better starting point than a cropped chart or the word “PRO” in an old advert. Keep the answer with your equipment records so future service and replacement questions refer to the same version.