{
  "format_version": "1.16.0",
  "minecraft:block": {
    "description": {
      "identifier": "tb:test_block" 
      //You don't need is_experimental
    },
    "components": {
      "minecraft:destroy_time": 1.0,
      "minecraft:friction": 0.9,
      "minecraft:map_color": "#FFFFFF",
      "minecraft:flammable": {
        "flame_odds": 1,
        "burn_odds": 1
      },
      "minecraft:block_light_absorption": 0, //This is a scale from 0 to 15, no decimals
      "minecraft:block_light_emission": 1.0, //This is a scale from 0.0 to 1.0, divide the light level you want by 15 to get this number
      "minecraft:explosion_resistance": 1.0
    }
  }
}