Ключевые слова: alternative, ambient, apartment, bill, blackout, bright, bulb, burn, business, climate, comfort, connect, control, cost, cozy, crisis, current, darkness, debt, delivery, device, efficiency, electricity, energy, environment, equipment, expensive, global, glow, home, illuminated, interior, liechtenstein, life, light, lit, object, pay, plug, price, room, save, shine, shut down, supply, tax, temperature, vaduz, voltage, warming,