No g4 is different pin spacing and diameter. Plus such a bulb would melt reflector and lens and no aluminum reflector is available. Plus would probably melt the socket with so much heat. May also melt the switch internals with so much current.So do G4 Bi-Pin fit in Maglite? Could you run 2x 21700 IMR in 3c mag with G4 Halogen for crazy brightness? When using standard 3c mag I can get a alu reflector & glas lens. Read about Philips 5761 30W G4. Peeps have used them in Mag mods as I have read. Over 700 lumens. Or is a adapter needed? Dimensions of G4 do not line up with standard MAG-num star bulbs. Just curious.
Plus 2x imr 21700 would probably instaflash a 5761.