An XV9 Hazard Battlesuit's Photon Caster units
A Photon Caster is a Tau defensive technology that all XV9 Hazard Battlesuits have mounted upon their forward knee armour. Operating in a similar fashion to Photon Grenades, Photon Casters are designed to be used in the situation that enemy forces advance too close to the Battlesuit, and repel attackers with a dazzling pulse of multi-spectrum light and a deafening sonic burst. This will often blind and disorient attackers, confusing them and slowing their charge so that the Battlesuit is able to respond with further volleys of lethal firepower.
Sources
- Codex: Tau (3rd Edition), pg. 19
- Codex: Tau Empire (4th Edition), pg. 29
- Codex: Tau Empire (6th Edition), pp. 37, 67
- Imperial Armour Apocalypse 2, pg. 58
- Imperial Armour Volume Three – The Taros Campaign, pg. 80
- Warhammer 40,000: Rulebook (6th Edition), pg. 62
- Warhammer 40,000: Wargear (4th Edition), pg. 54