Viewsonic LSD300W-ST

The number worth noticing on the ViewSonic LSD300W-ST is 60,000 hours. That is the rating on its LED light source, roughly three times what the laser projectors around it claim, and it comes with no lamp and no colour wheel. As always the figure is measured to the point where output has halved rather than to failure, and it is worth knowing that the UK warranty covers the light source to 20,000 hours rather than the full 60,000, so the two numbers describe different things. The lens is fixed at 0.49:1, putting 100 inches diagonal image from around a metre throw distance to the screen, so the projector sits close enough that nobody standing at the screen is in the light path.



For a classroom this is an easy projector to live with. It weighs 2.85kg, the optical engine is sealed to IP5X so there is no filter to clean, and keystone correction runs to 40 degrees in both directions, which is a far more forgiving range than most projectors offer and useful when the mounting point is dictated by whatever is already in the ceiling. Worth noting there is only one HDMI input and it is version 1.4, so a room with two sources needs a HDMI switch or manually unplug the first source and plug in the second. The speaker is rated at 2W, which is a token gesture for audio and no way near loud enough for a standard size room, so the ViewSonic LSD300W-ST assumes sound comes from an external sound system.

The LSD300W-ST is a short-throw LED projector from ViewSonic, designed specifically for education environments. It delivers 3,300 ANSI Lumens of brightness and WXGA resolution, making it ideal for small to medium-sized classrooms. With a 0.49 short-throw ratio, it projects a 100” image from just 1.06 meters, ensuring clear visuals with minimal glare and shadows. Powered by third-generation LED technology, this lamp-free projector offers a 60,000-hour lifespan, helping reduce maintenance costs and eliminate the use of mercury-based lamps. Its sealed DLP engine ensures dustproof, filter-free operation with long-lasting colour performance. Designed for intuitive operation, the LSD300W-ST features instant power on/off, horizontal/vertical keystone correction, 4-corner adjustment, and 360° projection, making it suitable for versatile installations—including floor projection in education settings. A built-in LAN control interface streamlines centralised device management and supports integration with Crestron, Extron, and ATEN systems.

3rd Generation LED Technology for Greater Sustainability
With the 3rd generation LED technology, the LSD300W-ST frees users from frequent lamp replacement and toxic mercury. Offering consistently impressive brightness for 60,000 hours, the projector saves the cost of time, manpower and money for maintenance, while providing a greener and more sustainable future.

Big Screen Fits for Small Spaces
The LSD300W-ST’s 0.49 short throw projection gives you 100” large screen from only 1.06m away when positioning the projector. Presenters will stay clear of the projector beam, eliminating eye glare and shadows on the projection screen.

Versatile Application
The projector can freely rotate at any angle vertically to aid with creative applications, allowing projection onto ceilings, walls, or floors.

Sealed Optical Engine with IP5X
Maintain crystal-clear image quality and product longevity with an advanced sealed optical engine that prevents dust from entering and affecting the thermal system.

Reliable Long-Term Performance with DLP Projection Technology
With DLP technology, the LSD300W-ST maintains consistent colour performance over time, free from any yellowing issues. Featuring a sealed engine design, it is filter-free, preventing dust from affecting internal components and ensuring minimal maintenance. Moreover, it offers crisp and seamless image quality, displaying remarkable contrast and eliminating the noticeable screen-door effect.