Mobile LED Projector


  • “PC-free” viewing – Built-in media player and office viewer
  • MHL support, HDMI connectivity, Built-in speaker, 3D Ready
  • Optional wireless presentations
  • Compact & Lightweight

Palm-sized projection powerhouse

The Optoma ML550 is an incredibly small LED projector with the power and performance of a larger unit. Delivering an impressive 500 lumens and 10,000:1 contrast ratio, along with razor-sharp focus and magnificent color accuracy, the ML550 will make your presentations stand out above the rest.

Designed for traveling professionals, the Optoma ML550 is small in size, light in weight and strong in performance and reliability. Its LED light source is rated to last over 20,000 hours, so there are no expensive bulbs to replace. It is built Optoma tough, so you know it will last for years to come.

Auto Power Off

To help save energy, this feature automatically turns off the projector after a set period of time, if it is not being used.

MHL Connectivity

Turn your projector into a smart display by connecting your smartphone or tablet with a single cable using MHL; now you can view presentations and documents, stream videos and share photos on the big screen.

Wireless Presenting (optional extra)

Making presentations couldn’t be easier using the optional wireless features of the WPS Wireless Adapter (sold separately) – you can connect and display presentations wirelessly from a laptop, PC or mobile device.

Additional information

Aspect Ratio16:10
Audio1 Watt Speaker
Brightness500 ANSI lumens
Compatible Aspect Ratio16:10 Native, 16:9 and 4:3 Compatible
Connections1x HDMI + MHL v1.0, 1x Universal I/O – VGA / Audio-Out 3.5mm, microSD-slot, USB-A reader/wireless
Contrast Ratio10,000:1
Control UnitN/A
Display TechnologySingle 0.45″ WXGA DMD Chip DLP™ Technology by Texas Instruments
Displayable Colors16.7 Million
InputsHDMI MHL v1.0, Universal I/O – VGA, microSD-slot (up to 32GB), USB Type A (Reader/Wireless)
Keystone Correction±40° Vertical
Light Source TypeLED
Light Source Lifeup to 20,000 hours (LED Life)
Lens ShiftNone
Maximum ResolutionVGA: WSXGA+ (1680 x 1050), HDMI: HD (1920 x 1080)
Native ResolutionWXGA (1280 x 800)
Noise Level30dB
On-Screen Display12 Languages: English, French, Spanish, Portuguese (Brazilian), German, Russian, Italian, Polish, Dutch, Swedish, Greek, Turkish
Operating Temperature41-95°F (5-35°C)
OutputsUniversal I/O – audio out (3.5mm)
Power Consumption445W Max (Bright mode), 335W (ECO mode), <0.5W (Standby)
Power SupplyAC input 100-240V, 50-60 Hz, auto-switching
Projection Distance1.8 – 10.6′
Projection LensF=2.5 – 3.39, F=17.63 – 31.36mm Manual Focus
Projection MethodFront, rear, ceiling count, tabletop
Projection Screen Size17″ – 100″
Remote ControlIR remote control
Throw Ratio1.5:1 (distance/width) – 5% variance
3D CompatibilitySVGA 120Hz, XGA 120Hz
Computer CompatibilityWSXGA+, SXGA+, WXGA+, WXGA, SXGA, XGA, SVGA, VGA resized, VESA, PC and Mac compatible
Horizontal Scan Rate49.64 kHz
Optional WirelessYes
Vertical Scan Rate24 – 120Hz (120Hz for 3D)
Video CompatiblityNTSC, PAL, SECAM, SDTV (480i), EDTV (480p),HDTV (720p, 1080i/p)
Dimensions (W x H x D)W 4.1" x D 4.2" x H 1.5"
SecurityKensington lock
Weight14.1 oz
UPC796435 41 859 5
Warranty Info1 Year Optoma Parts and Labor
  • ML550-Data Sheet

  • ML550-M-en-US

  • ML550_Front_300dpi-Datasheet-img

  • ML550_IO panel_300dpi-Datasheet-img

  • ML550

  • ML550

IR remote control for select Optoma projectors.



Wireless HDMI transmitter/receiver kit. Dimensions: 7.2" x 3.8" x 1.2"...



Expert Reviews,
September 27, 2013

“It’s expensive, but a wide range of ports and bright bulb make this one of the best ultraportable projectors so far.”“The ML550 has a fantastic range of inputs round the back and it caters for those who don’t want to carry a laptop with them extremely well.”“…we think the ML550 justifies the extra expense as it not only connects to a far greater range of devices, but it can also be used in all types of lighting conditions.”“The Optoma ML550 is one of the smallest DLP projectors we’ve ever seen. Weighing a mere 380g and measuring just 39x105x106mm”


Business Computing World,
May 13, 2014

“Having tried mobile LED Projectors in the past and not been that impressed, we were more than pleasantly surprised by what Optoma has managed to achieve with the ML550. Not only is it tiny and very portable (we’ve got bigger digital cameras!), it also delivers the goods both in terms of brightness and picture clarity. Indeed, it compares well against conventional projectors with higher ratings than the 500 lumens quoted. Add to that extensive options for PC-free presentations, including built in viewers for Office and other popular document formats, and you have a real little projector powerhouse, literally, in the palm of your hand.”



PC Magazine,
June 11, 2014

“The ML550 is lighter than the 3M MP410, at 14 ounces by itself or 1 pound 3 ounces with its power block. It’s also a touch smaller, at 1.5 by 4.1 by 4.2 inches (HWD). And, of course, it’s brighter too.”

“Optoma ships the ML550 with a soft carrying case that’s large enough for the projector and power block as well as the included cable and credit-card size remote. Also helping make the projector even more portable is that you can read files directly from the 1.5GB internal memory, from USB memory keys, or from microSD cards.”

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Optoma ML550 Projector Is Portable Perfection (BizTech Magazine),
February 10, 2015

Review: Optoma ML550 Projector Is Portable Perfection

The days of lugging a heavy projector to meetings are over thanks to the Optoma ML550 mobile projector.

End-User Advantages

Measuring just 1.5 x 4.1 x 4.2 inches, the Optoma ML550 looks more like a MiFi device than an LED projector. By itself, the ML550 weighs under a pound at 14.1 ounces, and even with the power adapter and carrying case, it’s still under two pounds.

Want to leave your notebook at the office? Simply plug in a USB thumb drive or microSD card and select a file to present. The projector supports Microsoft Office documents, as well as .avi, .divx, .mpeg, .mp4, .mov, and .wmv videos. You can also point to a folder full of of .JPG or .BMP files to show a slideshow.

Connect the ML550 to a computer or external video source via a supplied universal input/output connector that allows for standard VGA input or an HDMI port (cable not provided). The projector supports an impressive number of video resolutions, from standard VGA (640×480 pixels) to SXGA (1280×1024) to WSXGA+ (1680×1050). Images look best in its native WXGA (1280×800) resolution, however, and video compatibility ranges from 480i to 1080i/p.

ML550’s picture is clear and crisp, owing in part to a 10,000-to-1 contrast ratio. Although the LED lamp’s brightness is just 500 lumens, projections are quite visible in typical office environments. Focus is easily adjusted with a rotating slider near the lens that also autocorrects keystone effects fairly well.

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