A budget 13 watt 2 turn 2 loops pl c energy saving compact fluorescent lamp this lamp has a 4 pin base g24q 1 this lamp is supplied in colour 840 what is this lamp commonly known as ge 13w biax d osram 13w dulux d sylvania 13w lynx d philips 13w master pl c other double turn tc d please note these lamps should be replaced like for like if you have an 13w lamp in your fitting it must be replaced with an 13w lamp you cannot reduce or increase the wattage