Illuminate the mystery surrounding this fan favourite Harry Potter chapter with 27 individual LEDs. Cast a spell over your LEGO set via the twin Flicker Effects Boards, bringing the candlelit halls to life. With Nearly Headless Nick glowing in the night sky, owners of this set will be stupified! Additionally, with our integrated lighting system, you can continue connecting your other Harry Potter light kits to an ever expanding Wizarding World collection! Light My Bricks LEGO Lighting Kits provide an easy way for LEGO fans to customize their models using LED lights. With detailed, step-by-step instructions, anyone can light up their LEGO set. All our kits are plug and play - no electronics knowledge needed!