Verrry unusual. I have been using my P61 HOLA for about 2 years now as well as my P60 LOLA in my 6P, alternating between both when I want to, with no problems. I've been using my G2 as well, also alternating between the P60 LOLA and the P61 HOLA for about 3 years and I have not had any lamps blow out yet. Definately call customer service at Surefire and tell them. They should have no problem with replacing it. Don't email them as I have found the e-mail support people kind of short and slightly rude (IMHO).