The company we use for our smartboards and projectors have given us a choice of 3 projectors.
The school normally use NEC but out of the 3 offered it has a lower lumens.
1. Epson EB-X11 projector Epson EB-X11 review | Expert Reviews
2. Hitachi CP-RX94 Hitachi CP-RX94 specs
3. NEC M230X NEC M230X projector
Sorry but I could not find all projectors links on one review site.