Use in almost any lamp designed for a wax tealight.   ITEM NO.   HD5 DIMENSION (in.)   13/16 H x 1 1/2 Dia. DIMENSION (mm)   21 H x 38 Dia. AVG. BURN TIME   5 Hours DESCRIPTION   5 Hour Disposable Fuel Cell - Clear Plastic CASE / PACK   180/Case We recommend using HD5 fuel cells with the following: TEALIGHT LAMPS