EnergonRelics/src/main/resources/assets/energonrelics/blockstates/lightning_rod.json

{
    "variants": {
        "half=lower": {
            "model": "energonrelics:block/lightning_rod_lower"
        },
        "half=upper": {
            "model": "energonrelics:block/lightning_rod_upper"
        }
    }
}