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The Sunlite FC16T9 is a 40W fluorescent circline tube in a 16-inch T9 ring, rated 6500K daylight. It is a direct replacement for round ceiling fixtures, magnifier lamps and older circline chandeliers, and it runs on a magnetic or electronic circline ballast rather than a standard screw socket. Compared with LED circline retrofits it is cheaper to buy but uses more power, starts slower in cold rooms and contains mercury, so it suits owners keeping an existing fluorescent fixture alive rather than anyone rewiring.
In stock
Lowest price we've seen: $32.99 on Nov 8 at Walmart. Tracked across 1 store since Nov 8.
Owner feedback on Sunlite circline tubes is mixed. Buyers value the bright daylight output and the fit in standard fixtures, but several report short life, flicker and early failures.
