Halogen+LCD projector and LED+ LCD technology

CRE Projector:

CRE multimedia projector takes a video(PC,TV and so on) signal and projects the corresponding image on a projection screen using a lens system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other inconsistencies through manual settings. CRE projectors are widely used for conference room presentations, classroom training, home theatre and live events applications. Projectors are widely use in schools,Club, entertainment and other education providers to project on an interactive white board to interactively teach pupils. 

A..Halogen model .

This is the simplest system, making it one of the most common and affordable for home theaters use. Its most common problem is a visible “screen door” or pixelation effect, although recent advances have minimized this. The lamp uselife is short and Power consumption is not worth for home electronic appliance.

B..LED PROJECTOR: 

It use an array of Light Emitting Diodes as the light source, negating the need for lamp replacement.but the brightness as not good as LCD model.

Advantages of LED projector

    richful color image 

    No future cost in lamp bulb replacement. 

    Portable: mini size, light weight 

    Low/No heat 

    Low/No noise 

    Low power consumption