With up to 4,500 lm*1 and 20,000:1 Dynamic Contrast, HD images*2 are vivid and sharp. Optional wireless module frees content from cables, while Corner Keystone Correction aligns pictures when projecting off-axis. Working flawlessly for 7,000 hours*3 before servicing, this light but rugged portable hits the ground running for effortless presentation. Extremely Bright Images. Hihg 20,000:1 contast.