Free lighting tools

Practical calculators for LED strips, recessed grids, room brightness, wire drop, IP ratings, and color. No account. Built by the OneGlow team.

LED Strip Power Supply Calculator Size the PSU for WS2812B, WLED, and 12V RGB runs - watts, amps, headroom. Free · runs in your browser Recessed Lighting Calculator How many recessed lights, spacing, and distance from walls - from room size. Free · runs in your browser Room Lumen Calculator Total lumens for a room - and what each fixture should put out. Free · runs in your browser LED Voltage Drop Calculator Volts lost on the wire - AWG, amps, length, single or dual feed. Free · runs in your browser Kelvin Color Temperature Chart Interactive CCT chart - warm white to daylight, with live color preview. Free · runs in your browser RGB to Hex Converter Convert light scene colors between RGB and hex - with room presets. Free · runs in your browser LED Amp Draw Calculator Amps from LED count, strip length, or total watts - fuse and wire headroom. Free · runs in your browser Foot Candle Lux Calculator Convert fc ↔ lux, or estimate room average from lumens and area. Free · runs in your browser IP Rating Chart for Lights IP20–IP68 for fixtures and strips - what dust and water digits actually mean. Free · runs in your browser LED Equivalent Wattage Chart Old bulb watts → LED watts and lumen-class labels. Free · runs in your browser Lighting Layout Calculator Even grid spacing and wall offsets for a rows × columns layout. Free · runs in your browser

Why we ship tools

Most lighting searches start with hardware math, then end in app chaos. Wire the room once - then run mixed brands from one iPhone list in OneGlow when you are ready.