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Updated August 2026 Lumens vs watts is a comparison between visible-light output and electrical power input. When replacing a common household lamp, find the required lumens first, then compare the watts used by products that deliver that output. With commercial…

Updated August 2026 Lux to foot candles is an illuminance unit conversion: multiply the lux value by 0.09290304. To convert in the other direction, multiply foot-candles by approximately 10.763910416709722. For example, 500 lx × 0.09290304 = 46.45152 fc. This conversion…

Updated August 2026 Watts to kilowatts is a conversion between two units used to express power in the International System of Units. To convert watts to kilowatts, divide the watt value by 1,000. Example: 1,500 W ÷ 1,000 = 1.5…

Updated August 2026 What is a ballast refers to an electrical ballast for lighting. It creates the conditions that a fluorescent or other gas-discharge lamp needs to start, then limits lamp current after the arc forms. It is not the…

Please Note: This list of ratings isn’t in any particular order and is provided as guidance only. Pool light manufacturers are the companies that design, engineer, and produce the submersible and deck-mounted LED, incandescent, and fiber-optic fixtures used to light…

“Note: The following manufacturers are listed in no particular order. GQLAMP is placed first as the featured manufacturer.” Updated August 2026 LED driver manufacturers are manufacturing companies or operating brands with first-party driver product lines for LED modules, luminaires, and…

Facade lighting manufacturers are the companies that design and produce the physical wall-wash, grazing, and floodlight fixtures used to illuminate building exteriors, as distinct from the design or installation firms that only specify and fit them. Sourcing from the right…

Lighting control system manufacturers are the companies that design and build the drivers, protocol interfaces, sensors, and software behind commercial and industrial lighting. This buyer’s guide profiles the world’s leading ones, real R&D and manufacturing companies, not distributors, ranked by…

Note: Except GQLAMP, listed first, the remaining manufacturers aren’t ranked in any particular order. This list is intended primarily for procurement reference and market research. LED flood light manufacturers are companies that design, engineer, and mass-produce outdoor flood-light fixtures for…

Quick Specs IES/ANSI office illuminance target (RP-1-24) 300–500 lux (30–50 fc) Industrial task-zone range (governed by RP-7-21) Roughly 5–30 fc general areas, up to 50–70 fc detailed inspection and fine-assembly tasks, per industry guides referencing RP-7-21 — confirm exact figures…