Features *12V or 24V DC Operation * Extremely high illumination efficiency , High number of switching cycles * Pre-heat start, Polarity protection, Low temperature and Low voltage start, * Easy Installation Using Existing Socket Item No: T4- 8 Wattage :8W Voltage :12V or 24V Lumens:480 Lm Life of lamp:8000hrs Color Temperature :2700k / 4200k/ 6400k Product Size :370X20X37.5mm Item No: T4- 12 Wattage :12W Voltage :12V or 24V Lumens:720 Lm Life of lamp:8000hrs Color Temperature :2700k / 4200k/ 6400k Product Size :470X20X37.5mm