Installing downlights requires proper ceiling hole cutting, reasonable spacing layout, standard wiring connection and firm fixture fixation. Suitable for living room, bedroom, hallway, hotel, office and shopping mall indoor ceiling decoration. Correct installing downlights helps achieve even lighting distribution, saves installation failure cost and guarantees safe circuit use. Our complete installation guide fits all types of LED downlights, providing clear steps for DIY installation and engineering construction, ideal for wholesalers, contractors and end users.