Boost · Beyond the maximum
Make your Mac brighter than macOS allows.
macOS caps everyday brightness at about 500 nits, so your screen washes out the moment you step into sunlight. LUMEL's Boost mode pushes a supported XDR display toward its ~1600-nit peak, and unlike one-trick boosters it can also dim below the minimum at night. Free to download, no account, no data collected.
Updated June 2026 · Free · Pro unlock $2.99
Why your Mac won't go bright enough
Your MacBook Pro display is built to hit 1000 nits sustained and around 1600 nits at its peak. But macOS only exposes a fraction of that — roughly 500 nits — for normal apps, web pages, and documents. The rest is reserved for HDR video.
That's fine indoors. Outdoors, on a train, or next to a bright window, the cap leaves the screen looking grey and unreadable while the panel sits there with brightness to spare.
LUMEL Boostopens that reserved headroom using Apple's public Extended Dynamic Range rendering — no private APIs, no system hacks — so the brightness your hardware already has becomes brightness you can actually use.
How to make your Mac brighter
- 1
Download LUMEL free
Get it from the Mac App Store — no account, no sign-up.
- 2
Open it from the menu bar
LUMEL lives in your menu bar. Click the icon to open the slider.
- 3
Switch to Boost
Tap Boost — the daylight direction that goes past the macOS maximum.
- 4
Push past the maximum
Drag the slider up and the screen jumps brighter toward its peak. Compare boosts the left half free; full-screen boost is a one-time $2.99 unlock.
Boost needs an XDR/EDR display — the 14- or 16-inch MacBook Pro (Apple silicon), Pro Display XDR, or Studio Display.
One app for brighter and darker
Boosting for sunlight is only half of it. LUMEL also has Eclipse mode — dim your Mac below the macOS minimum for dark rooms and late-night reading. Day and night, one menu-bar app, one tap.
Questions, answered
Can you make a MacBook brighter than its maximum?
Yes, on supported hardware. Your MacBook XDR display is rated far brighter than the range macOS exposes for everyday (SDR) content — the same headroom it already uses for HDR video. LUMEL's Boost mode uses Apple's public Extended Dynamic Range path to make that headroom available toward the panel's ~1600-nit peak.
Why is my MacBook screen so dim in direct sunlight?
macOS caps everyday content at roughly 500 nits, even on MacBook Pro displays rated for 1000 nits sustained and ~1600 nits peak. In direct sun that cap washes the screen out. Boost lifts brightness toward the panel's peak so it stays readable outdoors.
Is boosting brightness safe for my Mac?
Your Mac's display firmware enforces its own thermal limits, so LUMEL can't drive the panel beyond what the hardware already permits. The mini-LED and LCD displays it supports don't suffer OLED-style burn-in. Sustained brightness runs warmer, so LUMEL is built for bursts and includes an optional auto-off timer and battery-aware safeguards.
Does a brighter screen drain the battery faster?
A brighter display uses more power, yes. That's why LUMEL lets you set a battery threshold from 10% to 50% — below it, boost switches off automatically — and Low Power Mode disables boost too, so it never quietly drains your day.
Which Macs can boost?
Displays that report extended dynamic range headroom: the 14- and 16-inch MacBook Pro (Apple silicon), Pro Display XDR, and Studio Display. On other Macs the app still opens, but the boost controls stay inactive until a compatible display is connected — Eclipse dimming, however, works on any Mac.
Outshine the sunlight.
Free to download. Compare boost is free; full-screen boost is a one-time $2.99.
Curious why the cap exists? Why your MacBook is limited to ~500 nits →