diff --git a/src/module/powers/lightdarkness.js b/src/module/powers/lightdarkness.js
new file mode 100644
index 0000000..f5a7463
--- /dev/null
+++ b/src/module/powers/lightdarkness.js
@@ -0,0 +1,98 @@
+import { PowerEffect } from './basePowers.js';
+
+export class LightDarknessEffect extends PowerEffect {
+  get name() {
+    return 'Light/Darkness';
+  }
+
+  get duration() {
+    return 100;
+  }
+
+  get icon() {
+    return this?.data?.direction === 'Darkness'
+      ? 'icons/commodities/gems/pearl-purple-dark.webp'
+      : 'icons/magic/light/light-lantern-lit-white.webp';
+  }
+
+  get isTargeted() {
+    return false;
+  }
+
+  get basePowerPoints() {
+    return 2;
+  }
+
+  get usePrimaryEffect() {
+    return false;
+  }
+
+  get modifiers() {
+    return [
+      ...super.modifiers,
+      {
+        sortOrder: -2,
+        name: 'Light or Darkness?',
+        id: 'direction',
+        type: 'radio',
+        default: 'Light',
+        epic: false,
+        choices: { Light: 'Light', Darkness: 'Darkness' },
+        effects: { Light: null, Darkness: null },
+        values: { Light: 0, Darkness: 0 },
+      },
+      {
+        name: 'Area Effect (Light only)',
+        id: 'area',
+        type: 'checkbox',
+        default: false,
+        value: 2,
+        epic: true,
+        effect: false,
+      },
+      {
+        name: 'True Darkness (Darkness only)',
+        id: 'truedark',
+        type: 'checkbox',
+        default: false,
+        value: 2,
+        epic: true,
+        effect: false,
+      },
+      {
+        name: 'Mobile',
+        id: 'mobile',
+        type: 'checkbox',
+        default: false,
+        value: 1,
+        epic: false,
+        effect: false,
+      },
+    ];
+  }
+
+  get effectName() {
+    return this.data.direction;
+  }
+
+  get description() {
+    let text = super.description;
+    if (this.data.direction === 'Light') {
+      const size = this.data.area ? "with a radius of the caster's Smarts ×2" : 'in a LBT';
+      text += `<p>Bright illumination ${size}.
+      ${this.data.raise ? 'Optionally with a raise, light is focused into a 5" beam.' : ''}`;
+    } else {
+      text += `<p>Block illumination
+      ${this.data.truedark ? ', Infravision, Low Light Vision, and Darkvision' : ''}
+      in an area the size of a LBT, making the area ${this.data.raise ? 'Pitch Dark' : 'Dark'}`;
+    }
+    if (this.data.mobile) {
+      text += ` The power can move as a limited free action at a pace of the
+      caster's arcane skill die. Alternately, it may be attached to an
+      inanimate object`;
+    }
+    text += '</p>';
+
+    return text;
+  }
+}
diff --git a/src/module/powers/powers.js b/src/module/powers/powers.js
index 2b0a554..603af0d 100644
--- a/src/module/powers/powers.js
+++ b/src/module/powers/powers.js
@@ -34,6 +34,7 @@ import { HealingEffect } from './healing.js';
 import { IllusionEffect } from './illusion.js';
 import { IntangibilityEffect } from './intangibility.js';
 import { InvisibliltyEffect } from './invisibility.js';
+import { LightDarknessEffect } from './lightdarkness.js';
 
 const PowerClasses = {
   'arcane-protection': ArcaneProtectionEffect,
@@ -53,6 +54,7 @@ const PowerClasses = {
   'conjure-item': ConjureItemEffect,
   curse: CurseEffect,
   'damage-field': DamageFieldEffect,
+  darkness: LightDarknessEffect,
   darksight: DarksightEffect,
   deflection: DeflectionEffect,
   'detect-arcana': DetectConcealArcanaEffect,
@@ -77,6 +79,9 @@ const PowerClasses = {
   illusion: IllusionEffect,
   intangibility: IntangibilityEffect,
   invisibility: InvisibliltyEffect,
+  'light-darkness': LightDarknessEffect,
+  lightdarkness: LightDarknessEffect,
+  light: LightDarknessEffect,
   'lower-trait': BoostLowerTraitEffect,
   shrink: GrowthShrinkEffect,
 };