diff --git a/interface/src/avatar/Avatar.cpp b/interface/src/avatar/Avatar.cpp
index 6dc3d4b339..467f63ccef 100644
--- a/interface/src/avatar/Avatar.cpp
+++ b/interface/src/avatar/Avatar.cpp
@@ -380,8 +380,7 @@ void Avatar::render(const glm::vec3& cameraPosition, RenderMode renderMode, bool
             foreach (const AvatarManager::LocalLight& light, DependencyManager::get<AvatarManager>()->getLocalLights()) {
                 glm::vec3 direction = orientation * light.direction;
                 DependencyManager::get<DeferredLightingEffect>()->addSpotLight(position - direction * distance,
-                    distance * 2.0f, glm::vec3(), light.color, light.color, 1.0f, 0.5f, 0.0f, direction,
-                    LIGHT_EXPONENT, LIGHT_CUTOFF);
+                    distance * 2.0f, light.color, 0.5f, orientation, LIGHT_EXPONENT, LIGHT_CUTOFF);
             }
         }
         
diff --git a/libraries/entities-renderer/src/RenderableLightEntityItem.cpp b/libraries/entities-renderer/src/RenderableLightEntityItem.cpp
index 1e0a9b6fc7..978ca11d9d 100644
--- a/libraries/entities-renderer/src/RenderableLightEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableLightEntityItem.cpp
@@ -48,7 +48,7 @@ void RenderableLightEntityItem::render(RenderArgs* args) {
     glm::vec3 diffuse = glm::vec3(diffuseR, diffuseG, diffuseB);
     glm::vec3 specular = glm::vec3(specularR, specularG, specularB);
     glm::vec3 direction = IDENTITY_FRONT * rotation;
-    float constantAttenuation = getConstantAttenuation();
+    float intensity = getConstantAttenuation();
     float linearAttenuation = getLinearAttenuation();
     float quadraticAttenuation = getQuadraticAttenuation();
     float exponent = getExponent();
@@ -56,11 +56,10 @@ void RenderableLightEntityItem::render(RenderArgs* args) {
 
     if (_isSpotlight) {
         DependencyManager::get<DeferredLightingEffect>()->addSpotLight(position, largestDiameter / 2.0f, 
-            ambient, diffuse, specular, constantAttenuation, linearAttenuation, quadraticAttenuation,
-            direction, exponent, cutoff);
+            diffuse, intensity, rotation, exponent, cutoff);
     } else {
         DependencyManager::get<DeferredLightingEffect>()->addPointLight(position, largestDiameter / 2.0f, 
-            ambient, diffuse, specular, constantAttenuation, linearAttenuation, quadraticAttenuation);
+            diffuse, intensity);
     }
 
 #ifdef WANT_DEBUG
diff --git a/libraries/render-utils/src/DeferredLightingEffect.cpp b/libraries/render-utils/src/DeferredLightingEffect.cpp
index 1f5d0ce4c3..5e203b041d 100644
--- a/libraries/render-utils/src/DeferredLightingEffect.cpp
+++ b/libraries/render-utils/src/DeferredLightingEffect.cpp
@@ -126,15 +126,16 @@ void DeferredLightingEffect::renderSolidCone(float base, float height, int slice
     releaseSimpleProgram();
 }
 
-void DeferredLightingEffect::addPointLight(const glm::vec3& position, float radius, const glm::vec3& ambient,
-        const glm::vec3& diffuse, const glm::vec3& specular, float constantAttenuation,
-        float linearAttenuation, float quadraticAttenuation) {
-    addSpotLight(position, radius, ambient, diffuse, specular, constantAttenuation, linearAttenuation, quadraticAttenuation);    
+void DeferredLightingEffect::addPointLight(const glm::vec3& position, float radius, const glm::vec3& color,
+        float intensity) {
+    addSpotLight(position, radius, color, intensity);    
 }
 
-void DeferredLightingEffect::addSpotLight(const glm::vec3& position, float radius, const glm::vec3& ambient,
-        const glm::vec3& diffuse, const glm::vec3& specular, float constantAttenuation, float linearAttenuation,
-        float quadraticAttenuation, const glm::vec3& direction, float exponent, float cutoff) {
+// Remove: ambient, specular, *Attenuation, direction
+// Add: intensity, radius
+// Rename: diffuseColor -> color
+void DeferredLightingEffect::addSpotLight(const glm::vec3& position, float radius, const glm::vec3& color,
+    float intensity, const glm::quat& orientation, float exponent, float cutoff) {
     
     int lightID = _pointLights.size() + _spotLights.size() + _globalLights.size();
     if (lightID >= _allocatedLights.size()) {
@@ -144,8 +145,8 @@ void DeferredLightingEffect::addSpotLight(const glm::vec3& position, float radiu
 
     lp->setPosition(position);
     lp->setMaximumRadius(radius);
-    lp->setColor(diffuse);
-    lp->setIntensity(1.0f);
+    lp->setColor(color);
+    lp->setIntensity(intensity);
     //lp->setShowContour(quadraticAttenuation);
 
     if (exponent == 0.0f && cutoff == PI) {
@@ -153,7 +154,7 @@ void DeferredLightingEffect::addSpotLight(const glm::vec3& position, float radiu
         _pointLights.push_back(lightID);
         
     } else {
-        lp->setDirection(direction);
+        lp->setOrientation(orientation);
         lp->setSpotAngle(cutoff);
         lp->setSpotExponent(exponent);
         lp->setType(model::Light::SPOT);
diff --git a/libraries/render-utils/src/DeferredLightingEffect.h b/libraries/render-utils/src/DeferredLightingEffect.h
index eeb92f19c7..c375f3eb52 100644
--- a/libraries/render-utils/src/DeferredLightingEffect.h
+++ b/libraries/render-utils/src/DeferredLightingEffect.h
@@ -57,15 +57,12 @@ public:
     void renderSolidCone(float base, float height, int slices, int stacks);
     
     /// Adds a point light to render for the current frame.
-    void addPointLight(const glm::vec3& position, float radius, const glm::vec3& ambient = glm::vec3(0.0f, 0.0f, 0.0f),
-        const glm::vec3& diffuse = glm::vec3(1.0f, 1.0f, 1.0f), const glm::vec3& specular = glm::vec3(1.0f, 1.0f, 1.0f),
-        float constantAttenuation = 1.0f, float linearAttenuation = 0.0f, float quadraticAttenuation = 0.0f);
+    void addPointLight(const glm::vec3& position, float radius, const glm::vec3& color = glm::vec3(0.0f, 0.0f, 0.0f),
+        float intensity = 0.5f);
         
     /// Adds a spot light to render for the current frame.
-    void addSpotLight(const glm::vec3& position, float radius, const glm::vec3& ambient = glm::vec3(0.0f, 0.0f, 0.0f),
-        const glm::vec3& diffuse = glm::vec3(1.0f, 1.0f, 1.0f), const glm::vec3& specular = glm::vec3(1.0f, 1.0f, 1.0f),
-        float constantAttenuation = 1.0f, float linearAttenuation = 0.0f, float quadraticAttenuation = 0.0f,
-        const glm::vec3& direction = glm::vec3(0.0f, 0.0f, -1.0f), float exponent = 0.0f, float cutoff = PI);
+    void addSpotLight(const glm::vec3& position, float radius, const glm::vec3& color = glm::vec3(1.0f, 1.0f, 1.0f),
+        float intensity = 0.5f, const glm::quat& orientation = glm::quat(), float exponent = 0.0f, float cutoff = PI);
     
     /// Adds an object to render after performing the deferred lighting for the current frame (e.g., a translucent object).
     void addPostLightingRenderable(PostLightingRenderable* renderable) { _postLightingRenderables.append(renderable); }