T bulb is a powerful 9 Watt LED Bulb with a B22 base cap, easily adjust with your bulb holders, Cool Daylight. Wattage Rechargeable:T-Bulbs:9w/backup:3 to 4 hours luman:120 per watt capacity,E 27 for the T-bulb, no need for an electrician, With this plug n play bulb, fitting the LIVYA T-bulb will be a hassle-free process.