Fresnel lights are much more controllable than open faced lights, so are more versatile, lighting is much than just the light output..
You need some form of safety glass or mesh with open faced lights, an exploding lamp can cause injury or possibly a fire.
Open face lights are more light efficient. However, being it's just a 1K, I'd stick with the Fresnel.
Yes, safety wire on an open face is the norm, but regarding the exploding globe statement. I've had and seen distorted globes in fixtures usually from contamination, but never have witnessed an "explosion", Has anyone here?
No, once you swing open the door (max light output, max. spread) on a Fresnel you loose the ears, so really no way of dropping in a safety wire.
Edited by JD Hartman, 05 June 2015 - 03:40 PM.