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From Pathfinder #202: Severed at the Root, which isn't enabled.

Lance of Sun's Radiance

ITEM 11
Price 1450 gp
Usage held in 2 hands
Bulk 2
Category martial
Group spear
Damage 1d8 piercing

Crafted for a long-forgotten knight to slay Avathrael Realmshaper, this +2 striking dragon bane lance is crafted from gleaming steel with a golden silk banner depicting a radiant sun. When in a location of dim light or darkness, the lance of sun's radiance sheds bright light in a 60-foot radius, and dim light for a further 60 feet.


Activate—Banish Darkness (divine, light, manipulate)
Frequency once per hour
Effect You tap the lance's tip against an object, causing that object to shed light like a torch for 1 hour.

Activate—Sun Cutting Scales (divine, light, manipulate)
Frequency once per day
Effect With a bold proclamation, you thrust the lance forward, firing a beam of brilliant, scouring light in a 120-foot line. Creatures in the area take 6d8 spirit damage, or 6d12 spirit damage if they're a dragon (DC 28 basic Reflex save). Creatures that critically fail are also Blinded for 1 round.
Pathfinder #202: Severed at the RootORC