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Title: unusual bulb, not available
Review: I have to agree: the bulb is a nightmare! I've ordered many odd replacement lamps on the Web, but can't find one in this configuration (4 pins in a square layout, with no protrusion at the bottom). Even disregarding the "PL-13W" marking (which looks like a bulb type but is not) and scanning through hundreds of 4-pin 13W CF bulbs, there's no match; even the base configuration does not appear in charts. Ott lamps use a real PL bulb, which has a standard 4 pins in a row. It appears that the manufacturer got a cheap price on non-standard bulbs.Buyer beware! Tensor, for shame!If anybody knows where to find a replacement, please post that here. Otherwise, this lamp is useless once the tube burns out.
