Bulb Mac OS

1. Bulb Mask

The Status Indicator Light (SIL) on Mac mini and Mac Pro has different patterns based on the state of your Mac. These patterns also occur on some MacBook, MacBook Pro, MacBook Air, and iMac models, though not all Macs have a SIL. If you have a Mac Pro, learn about the status indicator light behavior on Mac Pro (2019).

Smart Lights for Yeelight is created to control your bulbs in form of a Mac OS tray app. The user interface is kept simple and clean to integrate seamlessly in your OSX device. To be able to use this tool, you need to set your Yeelight device in LAN-Control mode at first. This enables the device control through your local network. New fast firmware updates for The Original, White 800 and Color 650 LIFX lights - adds connectivity and performance upgrades in just minutes per bulb. Update 1 February 2015. Added support for secure Internet-connectivity of your LIFX bulbs. Improved performance.

After you press the power button

Every time you turn on your Mac, it performs various hardware checks. If the SIL flashes one or more times after you turn on the computer, and the pattern repeats after a brief pause, there may be a hardware issue. To isolate the issue, run Apple Diagnostics.

During startup

When you press the power button to turn on the computer, the SIL also turns on. As the computer starts up, the SIL stays on until the processor (GPU) has initialized and the display turns on. When the GPU initializes properly, the display turns on and the SIL turns off simultaneously.

On Mac mini models from 2011 and newer, the SIL stays on when the computer is powered on.

During operation or display sleep

While the computer is operating, the SIL remains off. If the display turns off but the computer is still on, the SIL turns on and does not blink. It remains like this until the display turns back on, at which time the SIL turns off again.

On Mac mini models from 2011 and newer, the SIL remains on when the computer is operating.

You can turn on Display Sleep by pressing Control-Shift-Eject. To change your Display Sleep settings, drag the 'Turn display off after' slider in the Energy Saver or Battery pane of System Preferences.

During sleep

When your Mac sleeps, the SIL pulsates on and off slowly. On Mac mini models introduced in 2018 or later, the SIL stays on when the computer is in sleep. You can customize your Mac's sleep behavior in the Energy Saver or Battery pane of System Preferences.

On Mac notebook computers, if the battery is completely depleted and the computer goes into Safe Sleep, the SIL doesn't illuminate at all.

During shut down

When you choose the Shut Down command, macOS first turns off the GPU. This turns the display off. When the display turns off, the SIL turns on. During the few seconds of shutdown, but before power is removed from the main logic board, the SIL remains on and will not blink.

When the computer is fully shut down, the SIL turns off.

Firmware recovery mode

If Mac mini (M1, 2020) is in firmware recovery mode, the status indicator light rapidly flashes amber three times, briefly flashes amber three times, then rapidly flashes amber three times. This repeats until the computer is turned off. You might need to revive your Mac mini. If you still need help, contact an Apple Authorized Service Provider.

Say you're about to give an important presentation, but when you turn on the projector you get a warning that says your bulb has exceeded it's usable life and you need to replace it. Typically you'll get at least one warning and then it will go back to normal for a while. However, it could shut itself off while the bulb is forced to cool down. This could be a disaster.
Most projectors have a built-in timer in order to track the life of the bulb. The trick to 'extend' the life of the bulb is to reset that timer without replacing the bulb. The method to do this will vary depending on the make and model of your projector, so consult the instructions and documentation. I will warn you that the life-timers are there for a reason, and it's best to listen to them. If you're in a bind and really need to get it working though, you can use this trick to buy yourself some time. This can also be used on printers and various other equipment that typically have life-timers on the consumables being used.

Bulb Mask

The next time you run into something saying you need to replace a part, but you don't have an extra one on hand, give this a try and it just may help you avoid some unhappy users.

Bulb Mac OS