minetest.register_node("scifi_nodes:switch_off", {
        description = "Wall switch",
        tiles = {
            "scifi_nodes_switch_off.png",
        },
        inventory_image = "scifi_nodes_switch_on.png",
        wield_image = "scifi_nodes_switch_on.png",
        drawtype = "signlike",
        sunlight_propagates = true,
        node_box = {
            type = "wallmounted",
            },
        selection_box = {
            type = "wallmounted",
        },
        paramtype = "light",
        paramtype2 = "wallmounted",
        groups = {cracky=1, oddly_breakable_by_hand=1, mesecon_needs_receiver = 1},
        on_rightclick = function(pos, node, clicker, item, _)
                minetest.sound_play("scifi_nodes_digicode", {max_hear_distance = 8, pos = pos, gain = 1.0})
                minetest.swap_node(pos, {name="scifi_nodes:switch_on", param2=node.param2})
                minetest.get_node_timer(pos):start(3)
        end,
        sounds = default.node_sound_glass_defaults(),
        mesecons = {
            receptor = {
                state = mesecon.state.off,
                rules = {
                    {x=1, y=-1, z=0},
                    {x=-1, y=-1, z=0},
                    {x=0, y=-1, z=1},
                    {x=0, y=-1, z=-1}
                }
            }
        },
    })

    minetest.register_node("scifi_nodes:switch_on", {
        description = "Wall switch",
        sunlight_propagates = true,
        tiles = {
            "scifi_nodes_switch_on.png",
        },
        inventory_image = "scifi_nodes_switch_on.png",
        wield_image = "scifi_nodes_switch_on.png",
        drawtype = "signlike",
        node_box = {
            type = "wallmounted",
        },
        selection_box = {
            type = "wallmounted",
        },
        paramtype = "light",
        paramtype2 = "wallmounted",
        light_source = 5,
        groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
        on_rightclick = function(pos, node, clicker, item, _)
            minetest.swap_node(pos, {name="scifi_nodes:switch_off", param2=node.param2})
            mesecon.receptor_off(pos)
        end,
        on_timer = function(pos, node, clicker, item, _)
            minetest.swap_node(pos, {name="scifi_nodes:switch_off", param2=node.param2})
            mesecon.receptor_off(pos)
        end,
        sounds = default.node_sound_glass_defaults(),
        mesecons = {
            receptor = {
                state = mesecon.state.on,
                rules = {
                    {x=1, y=-1, z=0},
                    {x=-1, y=-1, z=0},
                    {x=0, y=-1, z=1},
                    {x=0, y=-1, z=-1}
                }
            }
        },
    })