Ellumiglow Tools — iOS

Introducing LIGHT
by Ellumiglow

A pocket reference for lighting professionals. Color temperature, color picker, gel math, power and DMX — in one tool, offline.

Download on the App Store See features
1500–7000K
CCT range
175+
Pantone colors
42
Glossary terms
0
Data collected
Five tools, one app

Built for working lighting techs.

Gaffers, set lighters, stage hands, designers, installers. The math you do on the job — without the spreadsheets, gel charts, and tabbed browser windows.

🌡️
Temp
Full-screen color temperature, 1500K–7000K, with reference chips.
🎨
RGB
RGB / Hex / Pantone picker with channel sliders and live readout.
📖
Glossary
42 lighting terms — CRI, lux, lumens, candela, beam angle, IP rating.
🔄
Convert
Lumens, candela, lux, foot-candles, nits — converted instantly.
🧮
Calc
Inverse-square, beam spread, mired/gel, power & DMX math.
Color Temperature

Match any source from candle to daylight.

Drag the slider or step ±100K. The whole screen becomes the color — useful as a reference card on set, a fill light in a pinch, or a CCT preview before you order gel.

  • ✓ 1500K (candle) → 7000K (overcast daylight)
  • ✓ Tanner Helland CCT-to-RGB conversion
  • ✓ Reference chips: tungsten, HMI, fluorescent, daylight
  • ✓ Hex, RGB, and CCT readout, always visible
Field calculators

The math you actually do on the job.

Three calculators for the field — designed by working lighting people, not buried under tabs and menus.

📐

Throw & spread

Inverse-square: known lux at known distance → lux at any target distance. Beam spot diameter from beam angle and throw, in metres or feet.

🎞️

Gel & mired

Source CCT → target CCT, with the closest single-gel match (Full / ¾ / ½ / ¼ / ⅛ CTB & CTO) and the stop loss for each.

⚡

Power & DMX

Watts to amps. Fixtures per circuit (NEC 80%-derated). DMX channels per universe, plus the start address for each fixture.

🔒
Privacy first

Works offline. No tracking. No accounts.

Every calculation runs on your device. LIGHT has no analytics, no telemetry, no advertising IDs, and no servers. The app does not request your location, contacts, or photo library.

Built by Ellumiglow

From the team behind SewGlo, VynEL & Pixelfreeled.

Ellumiglow has been making and selling pro lighting hardware since 2010. LIGHT is the tool we wished we had on every install — so we built it.

Get LIGHT.

Available on iPhone. One-time purchase. No subscriptions.

Download on the App Store