Help me ID this head!

[Mdinana]

Need some help ID'ing the head off a SF I have. It fits the E-series; here mounted on an E1L. It's a 2-level light (45/3?), and doesn't seem to have any loss of power on a 1-cell. Any ideas?

Thank you!

 

[carbine15]

looks like an e1b backup head.

 

[Mdinana]

that's what I was thinking. Thanks for the second opinion.

 

[TITAN1833]

+2
E1B backup head :twothumbs

 

[greenLED]

+3 on it being an e1b head.

 

[Cosmo7809]

Just in case, +4 on E1b head :hahaha: