LED Lighting Tools & Calculators
Free, practical tools for every lighting project — size a room in lumens, pick a color temperature, plan an LED strip run, estimate energy savings, and lay out fixtures for any space.
Lumens to Watts Calculator
Estimate the wattage an LED needs to hit a target brightness from its efficacy in lumens per watt — the higher the efficacy, the fewer watts for the same light
Room Lumens Calculator
Work out how many lumens a room needs from its floor area and a target light level in foot-candles — a fast way to size bulbs and fixtures for a space
LED Savings Calculator
Compare the running cost of an old bulb against an LED from wattage, hours, and your electricity rate — see the yearly energy savings of switching to LED
LED Strip Power Calculator
Size the power supply for an LED strip from its length and watts-per-meter, with headroom built in — get the total load and the PSU wattage to buy
Color Temperature Guide
Translate a color temperature in kelvin into warm, neutral, cool, or daylight white — and see which rooms and tasks each one suits best
Lux to Foot-candles Converter
Convert an illuminance reading from lux to foot-candles (1 fc = 10.764 lux) — handy for comparing a light-meter reading against US lighting specs