... Power factor: 0.98 ELECTRONIC BALLAST1. Electronic Ballast for T5~T12: 18W, 36W, 58W, 75W, 95W X1, X2; 2. Electronic Ballast for Circle tube: 22W ... , 55W X1, X2; 4. Electronic Ballast for 2D lamp: 16W, 28W, 38W5. Electronic Ballast for MH lamp: 35W, 70W 6. Electronic Ballast for HID lamp: 35W ...