Novelty outlook, utility function T4 tri-phosphor fluorescent bulb with build-in electronic ballast Rapid start at a low voltage and no flicker Saving energy, long life and outstanding performance Low power consumption and without noise T4 8W 220V/120V PC/ Aluminum alloy 340*21*32 T4 12W 220V/120V PC/ Aluminum alloy 442*21*32 T4 16W 220V/120V PC/ Aluminum alloy 487*21*32 T4 20W 220V/120V PC/ Aluminum alloy 532*21*32 T4 22W 220V/120V PC/ Aluminum alloy 732*21*32 T4 24W 220V/120V PC/ Aluminum alloy 872*21*32 T4 26W 220V/120V PC/ Aluminum alloy 1022*21*32 T4 28W 220V/120V PC/ Aluminum alloy 1172*21*32