ams OSRAM OSLON Square Series GH CSSRM4.24-V7V9-1-1-700-R33 Hyper Red 660 nm High-Power LED

Product Introduction

The GH CSSRM4.24-V7V9-1-1-700-R33 is a hyper red emitter from the ams OSRAM OSLON Square family, built for horticultural lighting where photons matter more than lumens. ams OSRAM calls it its most compact high-power LED; the 3.00 × 3.00 mm ceramic package with a silicone lens uses the standard 1212 pad layout.
 

At the 700 mA test current the part emits 995 to 1120 mW of radiant flux. Peak wavelength is 660 nm, centroid 657 nm, and spectral bandwidth 25 nm. Photon flux is typically 5.74 µmol/s, giving a photon efficacy of 4.04 µmol/J - the number a grow-light designer actually works from. Radiant efficiency reaches 74 % at 700 mA and 81 % at the 350 mA test point. Forward voltage is 2.02 V typical, so a 48 V driver can carry long series strings without extra channels. Junction-to-solder-point thermal resistance is 1.4 K/W.

Key Product Features

1. Hyper Red Spectrum Matched to Photosynthesis：A 660 nm peak and 657 nm centroid sit on the red absorption band of chlorophyll, with a 25 nm bandwidth narrow enough that virtually all emitted power falls inside the 400–700 nm PAR window.
2. Top Flux Bin at 995–1120 mW：The V7V9 group is the highest radiant flux range ams OSRAM offers in this family at 700 mA, so a fixture reaches its target PPF with fewer emitters and less board area.
3. 74 % Radiant Efficiency at 700 mA：Three quarters of the electrical input leaves the die as light rather than heat. That is what allows a junction-to-solder-point thermal resistance of just 1.4 K/W, and it keeps metal-core board area and heatsink mass low.
4. 2.02 V Forward Voltage for Long Strings：The low forward voltage lets a 48 V or 54 V constant-current driver run a long series string from a single channel - fewer drivers, fewer connectors, and simpler wiring in multi-bar grow lights.
5. Ceramic Package Built for Reflow Assembly：The SMT ceramic body with a silicone lens weighs 28.0 mg, emits a 120° Lambertian beam, carries an 8 kV HBM Class 3B ESD rating with an internal protection device, and ships at MSL 2 for standard pick-and-place lines.

Application Fields

The GH CSSRM4.24-V7V9-1-1-700-R33 belongs to the hyper red class that supplies the red end of a horticultural spectrum. It is specified by photon output rather than by lumens, so the fixtures below are all sized around PPF and daily light integral targets. Typical specifications include:

- Greenhouse supplemental lighting – top-lighting bars and boom systems that add red photons to natural daylight during low-irradiance months.
- Controlled-environment agriculture – sealed grow rooms running fixed photoperiods where spectrum and PPF are set by recipe.
- Vertical farms and multi-tier racks – high-density arrays where the 3.00 × 3.00 mm footprint and low thermal load allow close layer spacing.
- Inter-lighting and under-canopy modules – side and lower-canopy bars that drive photosynthesis in shaded leaf layers.
- Cannabis and high-value crop production – flowering-stage spectra built around 660 nm hyper red.
- Research and phenotyping chambers – photobiology studies that need a stable, documented red peak and a narrow spectral bandwidth.
- Seed germination and tissue culture rooms – controlled red-dominant illumination for early-stage growth.
- Algae and photobioreactor lighting – red-heavy illumination for photosynthetic microorganism cultivation.
- Aquaponics and hydroponic systems – recirculating installations where red and blue channels are balanced per crop.
- Retrofit light engines – replacement modules for fixtures originally designed around OSLON Square 3030 pads.

Why Choose Gainer LED?

Gainer LED supplies branded optoelectronic components to B2B buyers who need the right bin, the right paperwork, and someone who answers technical questions before the order rather than after it. What we offer:

- Bin-level verification on horticulture parts：Flux group, centroid wavelength group, and forward voltage group are confirmed against your acceptance criteria before quoting. For a red emitter, a wavelength group mismatch changes the fixture spectrum, not just the brightness.
- End-of-life and last-time-buy support：When a manufacturer moves a family to discontinued status, we help you confirm remaining bin availability, evaluate the closest in-production alternative, and place a last-time-buy order that matches your qualification cycle.
- Photon metric support：We work in PPF, photon efficacy, and daily light integral terms as well as in milliwatts, so the specification you receive matches the way your customer measures the fixture.
- Thermal and board-level guidance：Junction temperature budgets, metal-core board selection, and solder pad design are reviewed against the datasheet curves before you commit to tooling.
- Assembly process information：We pass on the handling conditions that affect yield - nitrogen-atmosphere reflow, the 245 °C to 260 °C peak window, MSL 2 floor time, and the silver-filled material warning about aggressive substances.
- Flexible quantities and kitting：Factory-sealed reels for volume production, split quantities for prototype and pilot builds, and kitting with matched optics, drivers, or MCPCBs when a project calls for it.
- Export documentation：Commercial invoices, packing lists, certificates of origin, and compliance statements prepared for customs clearance in regulated markets.
- Sample programme and firm lead times：Samples for bench and grow-tent testing, then lead times confirmed in writing before the order is placed.
- After-sales follow-through：If a delivered lot fails incoming inspection on flux, wavelength, or voltage, we investigate with the manufacturer and resolve it rather than passing the problem back to you.