diff --git a/data/json/items/tool_armor.json b/data/json/items/tool_armor.json
index fe780c72c3319..31c6171b8b071 100644
--- a/data/json/items/tool_armor.json
+++ b/data/json/items/tool_armor.json
@@ -873,12 +873,14 @@
     "color": "blue",
     "name": { "str": "headlamp" },
     "description": "An LED headlamp with an adjustable strap so as to be comfortably worn on your head or attached to your helmet.  Use it to turn it on.",
-    "price": "40 USD",
+    "//": "reference: https://www.rei.com/product/202772/black-diamond-astro-300-headlamp",
+    "price": "20 USD",
     "price_postapoc": "1 USD",
     "material": [ "plastic", "aluminum" ],
     "flags": [ "OVERSIZE", "BELTED", "PADDED", "ALLOWS_NATURAL_ATTACKS" ],
-    "weight": "520 g",
-    "volume": "500 ml",
+    "weight": "150 g",
+    "volume": "141 ml",
+    "longest_side": "136 mm",
     "charges_per_use": 1,
     "ammo": "battery",
     "use_action": {
@@ -894,8 +896,8 @@
       {
         "pocket_type": "MAGAZINE_WELL",
         "rigid": true,
-        "flag_restriction": [ "BATTERY_LIGHT", "BATTERY_ULTRA_LIGHT" ],
-        "default_magazine": "light_battery_cell"
+        "flag_restriction": [ "BATTERY_MEDIUM" ],
+        "default_magazine": "medium_battery_cell"
       }
     ],
     "armor": [ { "coverage": 45, "covers": [ "head" ], "specifically_covers": [ "head_crown", "head_forehead" ] } ],
@@ -960,7 +962,7 @@
     "name": { "str": "headlamp (on)", "str_pl": "headlamps (on)" },
     "description": "An LED headlamp with an adjustable strap so as to be comfortably worn on your head or attached to your helmet.  It is turned on, and continually draining batteries.  Use it to turn it off.",
     "flags": [ "LIGHT_300", "CHARGEDIM", "OVERSIZE", "BELTED", "PADDED", "ALLOWS_NATURAL_ATTACKS", "TRADER_AVOID" ],
-    "power_draw": "10 W",
+    "power_draw": "1560 mW",
     "revert_to": "wearable_light",
     "use_action": {
       "ammo_scale": 0,
diff --git a/data/json/professions.json b/data/json/professions.json
index c1a3716486a29..6c29972f2ce22 100644
--- a/data/json/professions.json
+++ b/data/json/professions.json
@@ -7913,7 +7913,7 @@
           { "group": "starter_wallet_full" },
           { "item": "pants", "variant": "pants_black" },
           { "item": "camera_pro", "charges": 300 },
-          { "item": "light_battery_cell", "ammo-item": "battery", "charges": 300, "container-item": "wearable_light" }
+          { "item": "medium_battery_cell", "ammo-item": "battery", "charges": 56, "container-item": "wearable_light" }
         ]
       },
       "male": { "entries": [ { "item": "briefs" } ] },
diff --git a/tests/map_helpers.cpp b/tests/map_helpers.cpp
index 6b5c72b52fbc2..aaf531365241c 100644
--- a/tests/map_helpers.cpp
+++ b/tests/map_helpers.cpp
@@ -207,7 +207,7 @@ void build_water_test_map( const ter_id &surface, const ter_id &mid, const ter_i
 void player_add_headlamp()
 {
     item headlamp( "wearable_light_on" );
-    item battery( "light_battery_cell" );
+    item battery( "medium_battery_cell" );
     battery.ammo_set( battery.ammo_default(), -1 );
     headlamp.put_in( battery, pocket_type::MAGAZINE_WELL );
     Character &you = get_player_character();