craftable with two diamonds and some iron in the shape of glasses has the durability and protection of diamond helmet and allows you do identify mobs in the same way you can with pneumatic craft but without the constant worry about its charge, durability wears out like a regular piece of armor.
Uhhh, game brightness does nothing? I would tell you that it's not true. The game brightness does show differences. For example, at lower, the blacks will be more black while when britter, your black will be closer to a gray. I should know, I once played a game where you could almost see nothing due to being really dark by chaning the brightness. Might be why they now give us the brightness adjustment option in more recent games. Too dark and you see nothing, too bright and it kills the mood.
Try Optifine and Modular Power Suit for your needs.