For the 1910-6143W or 1910-6106w, 1910-6103W are most used for Mitsubishi rear projection tv set. Here are a list of the models it fits for: 
MITSUBISHI WD-65733, MITSUBISHI WD-57733, MITSUBISHI WD-57734, MITSUBISHI WD-57833, MITSUBISHI WD-60638, MITSUBISHI WD-60733, MITSUBISHI WD-60735, MITSUBISHI WD-60737, MITSUBISHI WD-60738, MITSUBISHI WD-60833, MITSUBISHI WD-60837, MITSUBISHI WD-60C8, MITSUBISHI WD-60C9, MITSUBISHI WD-65638, MITSUBISHI WD-65731, MITSUBISHI WD-65733, MITSUBISHI WD-65734, MITSUBISHI WD-65735, MITSUBISHI WD-65737, MITSUBISHI WD-65738, MITSUBISHI WD-65833, MITSUBISHI WD-65835, MITSUBISHI WD-65837, MITSUBISHI WD-65838, MITSUBISHI WD-65C8, MITSUBISHI WD-65C9, MITSUBISHI WD-73638, MITSUBISHI WD-73640, MITSUBISHI WD-73733, MITSUBISHI WD-73734, MITSUBISHI WD-73735, MITSUBISHI WD-73736, MITSUBISHI WD-73737, MITSUBISHI WD-73738, MITSUBISHI WD-73833, MITSUBISHI WD-73835, MITSUBISHI WD-73837, MITSUBISHI WD-73838, MITSUBISHI WD-73840, MITSUBISHI WD-73C11, MITSUBISHI WD-73C8, MITSUBISHI WD-73C9, MITSUBISHI WD-75837, MITSUBISHI WD-82737, MITSUBISHI WD-82738, MITSUBISHI WD-82838, MITSUBISHI WD-C657, MITSUBISHI WD-Y577, MITSUBISHI WD-Y657, SAMSUNG HL50A650C1FXZA, SAMSUNG HL56A650C1FXZA, SAMSUNG HL61A650C1FXZA, SAMSUNG HL61A750A1FXZA, For the 1910-6143W or 1910-6106w, 1910-6103W are most used for Mitsubishi rear projection tv set. Here are a list of the models it fits for: 
SAMSUNG HL67A750A1FXZA, SAMSUNG HLT5055WX/XAA, SAMSUNG HLT5076SX/XAA, SAMSUNG HLT5087SX/XAA, SAMSUNG HLT5656WX/XAA, SAMSUNG HLT5676SX/XAA, SAMSUNG HLT5687SAX/XAA, SAMSUNG HLT5687SX/XAA, SAMSUNG HLT5689SX/XAA, SAMSUNG HLT6156WX/XAA, SAMSUNG HLT6176SX/XAA, SAMSUNG HLT6187SAX/XAA, SAMSUNG HLT6187SX/XAA, SAMSUNG HLT6189SX/XAA, SAMSUNG HLT6756W, SAMSUNG HLT6756WX/XAA, SAMSUNG HLT7288WX/XAA, TOSHIBA 57HM167, TOSHIBA 65HM167