About

Incorrect luminaire specification causes procurement errors, failed tender submissions, and non-compliant installations under EN 12464-1 workplace lighting standards. A single wrong CCT or IP rating on a datasheet can void a warranty or fail an electrical inspection. This generator produces standardized technical datasheets for over 3000 parametric LED luminaire modifications, computing luminous flux from P × η with CCT and CRI derating factors applied automatically. Each sheet includes dimensional schematics, photometric summaries, and EU energy classification per Regulation 2019/2015.

The tool assumes stable thermal conditions at 25°C ambient (Ta). Real-world lumen depreciation due to thermal management, driver losses, and L70 lifetime factors are not modeled here. Pro tip: always cross-reference generated datasheets against manufacturer LDT/IES files before submitting to a lighting consultant.

Formulas

The luminous flux for each modification is calculated by applying wattage to the family-specific efficacy, then applying correction factors for color temperature and color rendering index.

Φ = P × η × k_CCT × k_CRI

Where Φ is luminous flux in lm, P is electrical power in W, η is nominal luminous efficacy in lm/W, k_CCT is the CCT correction factor (range 0.96 - 1.02), and k_CRI is the CRI derating factor (1.00 for CRI 80, 0.95 for CRI 90, 0.90 for CRI 97).

The EU Energy Efficiency Index is computed as:

EEI = P_corP_ref

Where P_ref = 0.0033 × Φ² + 0.3478 × Φ for flux values above 1300lm. Luminaires achieving EEI ≤ 0.50 qualify for class A, per EU 2019/2015.

Beam coverage diameter at mounting height:

D = 2 × h × tan(θ2)

Where D is the beam diameter in m, h is the mounting height in m, and θ is the half-peak beam angle in degrees.

SKU encoding follows the pattern: [FAMILY]−[WATT]−[SIZE]−[CCT]−[BEAM]−[IP]−[DIM], where each segment is a zero-padded numeric or alpha code.

Reference Data

Luminaire Family	Wattage Range	Efficacy lm/W	IP Rating	Typical Application	Mounting
Panel (PNL)	18 - 72W	120 - 140	IP20/IP44	Office, Healthcare	Recessed / Surface
Downlight (DWL)	8 - 35W	90 - 110	IP44/IP54	Retail, Hospitality	Recessed
Highbay (HBY)	100 - 240W	140 - 170	IP65	Warehouse, Industrial	Pendant / Chain
Floodlight (FLD)	30 - 500W	130 - 155	IP66/IP67	Facade, Stadium	Bracket / Pole
Linear (LNR)	18 - 58W	130 - 150	IP20/IP65	Corridor, Parking	Surface / Suspended
Troffer (TRF)	25 - 50W	115 - 135	IP20	Office, Education	Recessed (T-bar)
Bollard (BLD)	6 - 20W	100 - 120	IP65	Pathway, Garden	Ground / Pedestal
Track Spot (TRK)	10 - 45W	85 - 105	IP20	Gallery, Retail	Track Rail
Streetlight (STR)	40 - 200W	150 - 175	IP66	Road, Parking Lot	Pole / Arm
Bulkhead (BHD)	8 - 24W	100 - 115	IP65/IK10	Stairwell, Utility	Wall / Ceiling
Strip/Tape (STP)	5 - 24W/m	80 - 120	IP20/IP67	Cove, Accent	Adhesive / Channel
Emergency (EMG)	3 - 8W	70 - 90	IP42/IP65	Exit, Safety	Recessed / Surface
Wall Washer (WWS)	12 - 36W	90 - 110	IP65	Architectural	Surface / Recessed
Cleanroom (CLN)	30 - 72W	110 - 130	IP65	Pharma, Lab	Recessed / Sealed
Explosion-proof (EXP)	20 - 150W	100 - 130	IP66/Ex	Petrochemical	Pendant / Bracket

Frequently Asked Questions

Higher CCT values (e.g., 6500K) use phosphor blends that are marginally more efficient at converting blue pump light, yielding a correction factor k_CCT of approximately 1.02. Warm white (2700K) uses thicker phosphor layers, dropping the factor to about 0.96. The generator applies these factors automatically from an internal lookup table derived from typical mid-power LED package data.

Achieving CRI ≥ 90 requires broader spectral emission, which sacrifices peak-wavelength efficiency. Industry data shows approximately 5% flux reduction at CRI 90 and up to 10% at CRI 97 compared to CRI 80 baselines. The derating factor k_CRI accounts for this. If your project requires both high CRI and high flux, select a higher wattage variant.

The datasheet format follows the informational structure recommended by IEC 62722-2-1, including rated input power, luminous flux, CCT, CRI, beam angle, IP rating, and lifetime declaration. However, the photometric values are parametric calculations, not laboratory-measured. For formal compliance submissions, replace the calculated Φ value with integrating sphere test data from an accredited lab.

IEC 60598-2-6 and local wiring regulations (e.g., BS 7671 in the UK) define zones. Zone 0 (inside bath/shower) requires minimum IP67. Zone 1 (above bath to 2.25m) requires IP44 minimum, though IP65 is recommended. Zone 2 (0.6m around Zone 1) requires IP44. This generator includes IP20 through IP67 options. Select based on the installation zone, not just the room name.

The generator calculates the Energy Efficiency Index (EEI) per EU Regulation 2019/2015 by comparing corrected input power against a reference power derived from the luminous flux. Class A requires EEI ≤ 0.50, class B requires ≤ 0.60, and so on. Most modern LED luminaires with efficacy above 120lm/W achieve class A or B. The classification shown is indicative and assumes no standby power consumption.

The datasheet provides a professional-grade document suitable for preliminary tender responses, internal product catalogs, and client presentations. For binding contractual submissions, supplement it with laboratory photometric reports (LDT/IES files), CE/UKCA declarations, and ENEC or CB test certificates. The generator formats the document to A4 print dimensions with proper margins for direct inclusion in tender packages.