and is this lamp any good?
"Fixture with high pressure sodium lamp 400 W, 55,000 lumens with full color spectrum, for better development and stronger plants. Can be used in both rooms without natural light in the greenhouse.
Perfect for those who want to start planting mission no early. Made of white lacquered aluminum sheet. High Pressure Lamp included. Plug with 3 m cable.
Complete with hanging chain. Can be connected to 10A socket outlet, but if you use the timer to the clear 16 A because of the higher load of ignition.
Technical specifications: 230 V Normal burn time approx. 14,000 hours. Weight 8 kg, L 56 x W 25 x H 14 cm. Protection IP X2"