diff --git a/config/services.yaml b/config/services.yaml
index d31efb0..71f08c6 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -10,6 +10,8 @@ parameters:
     temperature_trigger_max: "%env(TEMPERATURE_TRIGGER_MAX)%"
     hygrometry_trigger_min: "%env(HYGROMETRY_TRIGGER_MIN)%"
     hygrometry_trigger_max: "%env(HYGROMETRY_TRIGGER_MAX)%"
+    light_on_at: "%env(LIGHT_ON_AT)%"
+    light_off_at: "%env(LIGHT_OFF_AT)%"
 
 services:
     # default configuration for services in *this* file
diff --git a/src/Controller/MonitoringApiController.php b/src/Controller/MonitoringApiController.php
index ce99a97..bf00312 100644
--- a/src/Controller/MonitoringApiController.php
+++ b/src/Controller/MonitoringApiController.php
@@ -8,13 +8,18 @@ use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use App\Repository\TemperatureRepository;
 use App\Repository\HygrometryRepository;
+use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
 
 class MonitoringApiController extends AbstractController
 {
     /**
      * @Route("/api/monitoring/temperature", name="api_monitoring_temperature", methods={"GET"})
      */
-    public function temperature(Request $request, TemperatureRepository $repository): JsonResponse
+    public function temperature(
+        Request $request,
+        TemperatureRepository $repository,
+        ParameterBagInterface $params
+    ): JsonResponse
     {
         $labels = [];
         $datasets = [];
@@ -41,17 +46,46 @@ class MonitoringApiController extends AbstractController
             'fill' => false,
         ];
 
+        $lightOn = [
+            'label' => 'Lumière allumée',
+            'data' => [],
+            'borderColor' => 'rgb(230, 217, 149)',
+            'fill' => false,
+        ];
+
+        $lightOff = [
+            'label' => 'Lumière éteinte',
+            'data' => [],
+            'borderColor' => 'rgb(214, 214, 214)',
+            'fill' => false,
+        ];
+
+        $lightOnAt = (int) $params->get('light_on_at');
+        $lightOffAt = (int) $params->get('light_off_at');
+
         foreach ($entities as $entity) {
             $hour = (int) $entity->getDate()->format('H');
             $labels[] = $entity->getDate()->format('H:i');
             $line['data'][] = $entity->getValue();
             $line2['data'][] = 27;
             $line3['data'][] = 23;
+
+            $lightTime = (int) $entity->getDate()->format('gi');
+
+            if ($lightTime >= $lightOn && $lightTime <= $lightOff) {
+                $lightOn['data'][] = 5;
+                $lightOff['data'][] = 0;
+            } else {
+                $lightOn['data'][] = 0;
+                $lightOff['data'][] = 5;
+            }
         }
 
         $datasets[] = $line;
         $datasets[] = $line2;
         $datasets[] = $line3;
+        $datasets[] = $lightOn;
+        $datasets[] = $lightOff;
 
         return $this->createGraphResponse($labels, $datasets);
     }
@@ -59,7 +93,11 @@ class MonitoringApiController extends AbstractController
     /**
      * @Route("/api/monitoring/hygrometry", name="api_monitoring_hygrometry", methods={"GET"})
      */
-    public function hygrometry(Request $request, HygrometryRepository $repository): JsonResponse
+    public function hygrometry(
+        Request $request,
+        HygrometryRepository $repository,
+        ParameterBagInterface $params
+    ): JsonResponse
     {
         $labels = [];
         $datasets = [];
@@ -80,14 +118,41 @@ class MonitoringApiController extends AbstractController
             'fill' => false,
         ];
 
+        $lightOn = [
+            'label' => 'Lumière allumée',
+            'data' => [],
+            'borderColor' => 'rgb(230, 217, 149)',
+            'fill' => false,
+        ];
+
+        $lightOff = [
+            'label' => 'Lumière éteinte',
+            'data' => [],
+            'borderColor' => 'rgb(214, 214, 214)',
+            'fill' => false,
+        ];
+
+        $lightOnAt = (int) $params->get('light_on_at');
+        $lightOffAt = (int) $params->get('light_off_at');
+
         foreach ($entities as $entity) {
             $labels[] = $entity->getDate()->format('H:i');
             $line['data'][] = $entity->getValue();
             $line2['data'][] = 50;
+
+            if ($lightTime >= $lightOn && $lightTime <= $lightOff) {
+                $lightOn['data'][] = 5;
+                $lightOff['data'][] = 0;
+            } else {
+                $lightOn['data'][] = 0;
+                $lightOff['data'][] = 5;
+            }
         }
 
         $datasets[] = $line;
         $datasets[] = $line2;
+        $datasets[] = $lightOn;
+        $datasets[] = $lightOff;
 
         return $this->createGraphResponse($labels, $datasets);
     }
diff --git a/templates/alert/hygrometry.txt.twig b/templates/alert/hygrometry.txt.twig
index e058e10..fc65362 100644
--- a/templates/alert/hygrometry.txt.twig
+++ b/templates/alert/hygrometry.txt.twig
@@ -1,3 +1,3 @@
 Date : {{ entity.date.format('d/m/Y H:i:s') }}
 Niveau hygrométrique : {{ entity.value }}%
-Déclancheurs : min={{ min }} max={{ max }}
+Déclancheurs : min={{ triggers.min }} max={{ triggers.max }}
diff --git a/templates/alert/temperature.txt.twig b/templates/alert/temperature.txt.twig
index 137bed5..4f57fb9 100644
--- a/templates/alert/temperature.txt.twig
+++ b/templates/alert/temperature.txt.twig
@@ -1,3 +1,3 @@
 Date : {{ entity.date.format('d/m/Y H:i:s') }}
 Température : {{ entity.value }}°
-Déclancheurs : min={{ min }} max={{ max }}
+Déclancheurs : min={{ triggers.min }} max={{ triggers.max }}