Wow! Doesn't matter! These fluorescent lamps are a real find. (3) The 23w bulbs in my ceiling fans put out LOTS of bright light. I didn't rate the efficiency or durability of these bulbs because I just plugged them in. But if you need bright daylight lamps, this is for you. I only use two of the three bulbs in the ceiling fan to keep the brightness low.
Sylvania 20318 Compact Fluorescent 4 Pin Single Tube 4100K, 13-watt: Efficient Lighting Solution for Any Space
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2 Pack PLC 13W 4100K 4 Pin G24Q-1 13 Watt Double Tube CFL Light Bulb - Energy-Efficient Replacement for Sylvania 20667 CF13DD/E/841, Philips 38328-3 PL-C 13W/841/4P/ALTO, and GE 97597 F13DBX/841/ECO4P
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π‘ (4 Pack) 13 Watt Mini Spiral GU24 Base CFL Light Bulb - Energy Efficient - Warm White (2700K) - 60W Equivalent - T2 Mini-Twist
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OttLite T18330 Replacement Tube Bulb
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