LumiPlan

LumiPlan is an architectural lighting calculation and electrical planning utility. This offline engineering and productivity tool provides photometric calculations, optical beam modeling, and BS 7671 circuit design for professionals. Developed by L&D Design and Installation Limited, LumiPlan operates completely offline without internet connectivity, third-party tracking, or device permissions. 15 DEDICATED ENGINEERING MODULES: 1. Spatial Illuminance & Lux Calculator - Total luminous flux calculation using the standard Lumen Method. - Room Cavity Ratio (RCR) and Coefficient of Utilization (CU) evaluation. - Calculation of fixture counts, grid layout rows and columns, and power density (W/m2). 2. Interactive CCT & Kelvin Tuner (Lightroom Studio) - Dynamic color temperature spectrum from 1800K candlelight to 6500K daylight. - Render canvas illustrating direct light cone distribution and surface illumination. - Circadian and Human Centric Lighting (HCL) indicators with melatonin and focus metrics. 3. Optical Beam Angle & Throw Distance Studio - Beam spread calculations for 15, 24, 36, 45, 60, and 90 degree optics. - Inverse Square Law center illuminance (lux) and Peak Candela (CBCP) calculation. - Beam footprint diameter and overlap coverage modeling. 4. Architectural Fixture Library & Datasheets - Technical specifications for trimless downlights, 48V magnetic track spots, wall washers, and IP67 exterior fixtures. - Optical cut-out diameters, CRI ratings (up to Ra 98), and thermal clearances. 5. Circuit & Electrical Load Planner (BS 7671) - Continuous duty and voltage drop verification for 230V UK and 120V US circuits. - MCB breaker sizing and the standard 80% continuous load safety limit. - Conductor cross-section selection (1.5mm2, 2.5mm2, 4.0mm2) keeping voltage drops under 3.0%. 6. Surface Reflectance & Cavity Ratio Studio - Surface material reflection evaluations from bright white plaster to dark slate. - Cavity ratio adjustments for low-reflectance interior spaces. 7. 2D Spatial Fixture Grid Placer - Interactive floorplan canvas to place, drag, and align luminaires. - Spacing verification applying the 1/2 ceiling height architectural guideline. 8. CIBSE LG7 & EN 12464 Compliance Auditor - Standard compliance checks against UK CIBSE Lighting Guide 7 and EN 12464-1. - Audit criteria covering task lux, Unified Glare Rating (UGR <= 19), and uniformity (Uo >= 0.60). 9. Smart Dimming Protocols Guide - Technical comparisons of DALI-2 (IEC 62386), 0-10V analog, Phase-Cut TRIAC, and Casambi Bluetooth mesh. 10. Acoustic Ceiling & Lighting Integration Studio - Sabine formula reverberation time (T60) and ceiling sound absorption metrics. - Assessment of fixture cutout area on acoustic wood slat and baffle systems. 11. Schedule & Labor Cost Estimator - Electrical installation work estimation for 1st fix, 2nd fix, termination, and commissioning. 12. Project Material Checklist & BOM Builder - Bill of materials tracker for remote drivers, mounting frames, and connectors with clipboard copy. 13. Studio Hub & Blueprint Dashboard - Central metric overview showing room dimensions, target lux, active CCT, and glare ratings. 14. Architectural Portfolio Showcase - Project reference gallery documenting completed residential and commercial installations. 15. Company Profile & Engineering Standards - Verification credentials for L&D Design and Installation Limited (UK Company #14700000, SIC 41202).