diff --git a/devicetypes/smartthings/zigbee-dimmer.src/zigbee-dimmer.groovy b/devicetypes/smartthings/zigbee-dimmer.src/zigbee-dimmer.groovy
index 54bf8dd..8fe39fc 100644
--- a/devicetypes/smartthings/zigbee-dimmer.src/zigbee-dimmer.groovy
+++ b/devicetypes/smartthings/zigbee-dimmer.src/zigbee-dimmer.groovy
@@ -114,8 +114,10 @@ def refresh() {
 }
 
 def installed() {
-    if ((device.getDataValue("manufacturer") == "MRVL") && (device.getDataValue("model") == "MZ100")) {
-        sendEvent(name: "level", value: 100)
+    if (((device.getDataValue("manufacturer") == "MRVL") && (device.getDataValue("model") == "MZ100")) || (device.getDataValue("manufacturer") == "OSRAM SYLVANIA") || (device.getDataValue("manufacturer") == "OSRAM")) {
+        if ((device.currentState("level")?.value == null) || (device.currentState("level")?.value == 0)) {
+            sendEvent(name: "level", value: 100)
+        }
     }
 }