Check the listing for details. PRO'SKIT BULB-T5 Replacement Circline Fluorescent Bulb Lamp - 902-109 & 902-110. Condition: New. Listed at 20.00 USD. PRO'SKIT BULB-T5 Replacement Circline Fluorescent Bulb Lamp - 902-109 & 902-110This Caprock brand lamp is 100% compatible with the Pro'skit brand BULB-T5 lamp. The lamp is 22 watts and is a T5 (5/8 inch) diameter tube with a four pin connector with the pins facing OUTSIDE the lamp. The outside diameter of the lamp is 7.25 inches. The 6400 degree color temperature simulates bright daylight illumination. FREE SHIPPING to any US address. International buyers please request shipping quote before you buy. Payment must be received within five days to avoid negative feedbackSpecifications: Lamp Diameter7.25 inches (outside diameter)Wattage22WColor6400 degrees (daylight)Tube DiameterT5 (5/8 inch)End Fitting4 pins facing outside