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Key Takeaways Find your property's reference: ordinary open parking is 1.0 fc suburban / 1.5 fc urban, maintained average, in LDL's 2013 guide. Retail, hospital and school parking: Germantown's published references are 1–2 fc maintained average; multifamily and industrial employee parking are 0.5–1.0 fc. Separate vehicle displays: LDL's 2013 exterior-sales references are 15 fc suburban / 20 fc urban, not...

Key Takeaways A 300W LED replaces a 1,000W metal halide parking lot fixture, cutting energy use ~70% (real draw drops from ~1,100W to ~300W per fixture) Wattage replacement guide: 150W LED → 400W MH · 200W LED → 600W MH · 300W LED → 1,000W MH · 400W LED → 1,200-1,500W MH A 20-fixture parking lot conversion typically saves $8,000-$10,000...

Three commercial LED brands compete for U.S. warehouse, factory, garage and parking lot lighting projects: GGJIA, Hyperlite (at hi-hyperlite.com), and Sunco (at sunco.com). Each wins different categories: Longest warranty: Sunco (7 years on most products, some series 10 years) Most consumer reviews: Hyperlite (1,021+ Trustpilot reviews, 4.6/5) Best warranty terms: GGJIA (from purchase date, full-replacement, no pro-rating) Free photometric design: GGJIA...

Key Takeaways OSHA 29 CFR 1910.176(c) requires loading dock areas be "kept in good repair" and 1910.22(a) mandates "sufficient" illumination, but does not specify a footcandle number IES RP-7 (Industrial Lighting) sets the de facto standard: 30 footcandles minimum for loading dock work areas, 50 fc inside trailers Dock arm lights (the articulating lights mounted at each dock door) are...

Key Takeaways Parking lot lighting is governed primarily by IES RP-20 (specific) and referenced through IES RP-8 (roadway) in many municipal codes Footcandle minimums range from 0.5 fc (basic safety) to 5+ fc (high-activity retail) depending on facility type Uniformity ratio target: 4:1 maximum-to-minimum for basic safety; 3:1 for retail and high-traffic Pole height typically 20–30 ft, with fixture spacing...

Key Takeaways Warehouse storage areas need 10 footcandles (fc); picking aisles need 20–30 fc; packing and inspection stations need 50 fc per IES RP-7 Fixture spacing should not exceed 1.2–1.5× the mounting height for UFO high bay fixtures Wattage planning: roughly 0.7–1.0W per sq ft for storage; 1.5–2.0W per sq ft for high-pick warehouses Total lumens needed = (area ×...