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Dalek Sec stalk

Dalek Sec's luminosity dischargers light up as he speaks. (TV: Doomsday)

The luminosity discharger, head lamp, radiation valve or dome light, was a device, typically appearing in twos, atop the dome of a Dalek's casing. They would light up whenever a Dalek spoke. (PROSE: Prisoner of the Daleks, Engines of War, Birth of a Legend) They could also flash involuntarily in cases of shock, such as when the Tenth Doctor revealed his identity to a Command Dalek. (PROSE: Prisoner of the Daleks)

"Ironside" Daleks deployed by the British Army against the Luftwaffe had covers placed over their luminosity dischargers. These covers were removed by the time they deserted and were subsequently destroyed by the New Dalek Paradigm. (TV: Victory of the Daleks)

As a distinguishing featureEdit

NumberEdit

Although the vast majority of Dalek casings possessed two luminosity dischargers, disposed symmetrically on either side of their eyestalks, (TV: The Daleks, et al.) there were exceptions to this rule.

The platoon of colourful asymmetrical Daleks whom the Second Doctor encountered while traveling with John and Gillian were distinguished by having only one, oversized luminosity discharger on their left side. The Doctor did not remark upon this peculiarity. (COMIC: Attack of the Daleks)

An increased number of speaking lights sometimes marked a heightened rank within the Dalek hierarchy: the unique, bulbous-headed Golden Emperor casing of the Dalek Prime had "about a dozen lights about the expanded dome instead of the average Dalek’s two". (COMIC: Genesis of Evil, PROSE: War of the Daleks) During the Last Great Time War, one type of Skaro Degradation also had a golden head dome with four radiation valves. (PROSE: Engines of War)

The red Supreme Dalek of the post-Time War New Dalek Empire was likewise distinguished by having three luminosity dischargers, (TV: The Stolen Earth/Journey's End) a feature also exhibited by the Supreme Dalek of the rebuilt Dalek City on Skaro, wh possessed a casing identical to that of the earlier New Dalek Empire Supreme. (TV: The Magician's Apprentice / The Witch's Familiar)

SizeEdit

Most early Dalek types such as the War Machine Daleks and the Silver Daleks and had small, bulb-shaped luminosity dischargers, (TV: The Daleks, The Power of the Daleks et al.) although even then this rule had exceptions: one Dalek Supreme of the Supreme Council was distinguished by its larger luminosity dischargers, (TV: Planet of the Daleks) and the singular dischargers of the asymmetrical Daleks encountered by the Second Doctor were similarly oversized. (COMIC: Attack of the Daleks)

The Grey Daleks' luminosity dischargers were also of limited size, but were slightly more elevated than the flat bulbs of the Silver and War Machine Daleks; (TV: Day of the Daleks et.al.) Some of these could vary in size and colour too. (TV: Destiny of the Daleks et al.) The very first Daleks created by Davros also had dischargers of this type. (TV: Genesis of the Daleks)

The white Imperial Daleks had yet another version, which appeared as small rings around small, golden and flat pieces of metal on the dome. Such luminosity dischargers were also seen atop the spherical dome of Davros' Dalek Emperor casing. (TV: Remembrance of the Daleks)

Daleks of the Last Great Time War and beyond, including the New Dalek Paradigm, had large luminosity dischargers of a size which had previously only been sported by the Supreme Council. (TV: Dalek, Victory of the Daleks)

Uniquely, the Black Dalek overseer had exceptionally short luminosity dischargers in comparison to even pre-Time War Daleks. (AUDIO: Planet of the Ogrons)

The robotic Proto-Daleks, which were constructed by the British and Germans as part of the Dalek Project during the First World War, had distinct luminosity dischargers; the British Proto-Daleks' luminosity dischargers were shaped like smaller glass hemispheres, while the German Proto-Daleks' were narrow, orange, cylindrical and larger than any true Dalek. (COMIC: The Dalek Project)

ColourEdit

As well as size, the Dalek Supreme of the Supreme Council was distinguished by the purple colour of its luminosity dischargers. It had the unusual feature of a discharger in the eyestalk lens. (TV: Planet of the Daleks)

The Supreme Dalek of the Renegade Daleks during the Imperial-Renegade Dalek Civil War was distinguished by its luminosity dischargers, which were coloured orange. (TV: Remembrance of the Daleks)

Despite the Recon Scout's rebuilt casing having basic white dischargers, the light inside would glow yellow when it spoke. (TV: Resolution)

ExceptionsEdit

The Special Weapons Dalek notably had neither luminosity dischargers nor an eyepiece. (TV: Remembrance of the Daleks) Instead the glass just below the dome, which also functioned as its vision, would light up when it spoke. (TV: The Witch's Familiar)

As a targetEdit

Ace used a baseball bat enhanced by the Hand of Omega to destroy the right luminosity discharger of an Imperial Dalek. (TV: Remembrance of the Daleks)

A radiation valve of a Skaro Degradation was detonated when Cinder struck it with her Dalek neutraliser, however, the Dalek survived. (PROSE: Engines of War)

Behind the scenesEdit

The Daleks seen in the theatrical film Dr. Who and the Daleks (held to be an invalid source by this Wiki) were the first to have larger luminosity dischargers. Regardless of rank, from the Black Dalek to the Red Dalek and the Blue Daleks, all luminosity dischargers were coloured red.

In Daleks' Invasion Earth 2150 A.D., the size of the luminosity dischargers remained the same, but with different colours; the Gold Dalek had matching gold luminosity dischargers, both the Black Dalek and the Red Dalek had luminosity dischargers coloured red, while the Silver Daleks had blue luminosity dischargers.

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