Brand Name: NONE High-concerned chemical: None Origin: Mainland China Material: Plastic Model Number: 10702,10703,12953~12956 Wattage: 17.5W Name: Plant growth heating mat Type: Plant heating pad Wattage: 110V/120V/220V/230V Size: 50*25cm/50*50cm/120*50cm Thickness: about 3mm/0.12in Power: 18W/45W Type 1: Seeding heat mat Type 2: Seedling growth heating pad Plug: 110V American Standard /220V European standard Choice: yes semi_Choice: yes