Cree XLamp CMB1840 3000K LED High-CRI 90 Metal Array COB CMB1840-0000-00PN0U0A30G
Procurement Specs & Quick-Facts:
* Manufacturer: Cree LED (XLamp® CMB Metal Array)
* Color Profile: 3000K Warm White (High-Fidelity)
* CRI: 90 Minimum (Optimized for accurate color rendering)
* Luminous Flux: U0 Bin Tier (~3800 - 4200 lm @ 1100mA, 85°C)
* LES (Light Emitting Surface): 14.5 mm
* Voltage Class: 36V Typical (Characterized at 1100mA)
* Max Drive Current: 2300 mA (High-power headroom)
* Supply Status: Original factory trays in stock; Verifiable lot traceability provided.
Description
Product Details
For LED module manufacturers and luminaire designers, the CMB series offers a strategic path to system cost reduction. By maintaining the industry-standard 17.85 mm x 17.85 mm footprint and a 14.5mm LES, the CMB1840 allows manufacturers to achieve higher lumen density and current handling without the expensive overhead of redesigning secondary optics or COB holders originally used for the CXB18xx series.
Critical Engineering Advantages for B2B Buyers
● Premium Color Control (3-Step MacAdam): The "30G" binning code ensures that the 3000K chromaticity stays within a tight 3-step MacAdam ellipse. This prevents visible color shifting in large-scale office or retail installations, a non-negotiable requirement for architectural lighting tenders.
● Industry-Leading Thermal Path: With an exceptionally low junction-to-case thermal resistance of only 0.24 °C/W, the CMB1840 handles drive currents up to 2300 mA. This efficiency facilitates more compact heatsink designs while preserving the L70/L90 lifespan standards.
● Optimized 14.5mm LES: The 14.5mm emission area allows designers to achieve high center-beam candlepower (CBCP). This is critical for retail display lighting where narrow beam angles and "punchy" light effects are necessary to highlight merchandise textures.
| Parameter | Performance Specification |
| Light Emitting Surface (LES) | 14.5 mm |
| Mechanical Dimensions | 17.85 mm x 17.85 mm |
| Typical Forward Voltage | 33.5 V – 35.5 V (36V Class) |
| Nominal Drive Current | 1100 mA |
| Maximum Drive Current | 2300 mA |
| Typical Luminous Flux | ~4000 lm (U0 Bin @ 1100mA, 85°C) |
| Color Temperature (CCT) | 3000K (3-Step MacAdam) |
| Color Rendering Index (CRI) | 90 Minimum |
| Thermal Resistance | 0.24 °C/W |
The CMB1840-0000-00PN0U0A30G is a staple light source for:
● Hospitality Downlights: Perfectly consistent 3000K warm-white for hotel lobbies and restaurant accent lighting where multiple fixtures are visible in a single line-of-sight.
● High-Lumen Industrial Arrays: Reliable light engines for warehouse fixtures or high-clearance corridors requiring 50,000+ hour lifespans.
● Museum & Gallery Projectors: Precision white light with excellent R9 values for accurate color reproduction of artifacts and artwork.
Why Source Cree through Gainer LED?
● Verified Batch Integrity: We guarantee 100% original Cree stock in factory trays. Every shipment is traceable to its original production lot and binning group.
● Wholesale Stability: We maintain strategic inventory of the CMB series to protect our B2B partners from semiconductor lead-time fluctuations.
● Global Export Logistics: Our team handles all documentation (RoHS, REACH, CoC) for international shipping, ensuring high-precision components reach your factory floor on schedule.
FAQ
Q: Is the CMB1840 compatible with reflectors designed for the CXB1830?
A: Yes. The CMB1840 shares the same 17.85mm footprint and similar LES dimensions (14.5mm vs 14mm) as the CXB1830. Most standard reflectors and TIR lenses designed for the 18xx platform are fully compatible.
Q: Why choose Metal Substrate (CMB) over Ceramic (CXB) variants?
A: Metal substrates offer significantly better mechanical stability, especially during automated assembly. They are resistant to thermal shock and mechanical stress, reducing the defect rate for contract manufacturers (EMS) during the mounting process.
Q: What is the maximum current I can drive this LED at for high-bay apps?
A: The CMB1840 is rated up to 2300mA. However, to maintain the L70 lifespan, we recommend ensuring your heatsink is rated for the additional heat load and utilizing the 0.24 °C/W thermal path with high-quality thermal grease.
Q: Does Gainer LED provide bin-specific shipping for large orders?
A: Absolutely. We understand that luminaire manufacturers need color uniformity. We coordinate wholesale shipments to provide the same flux and chromaticity bins across your entire order whenever possible.
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