Cartomizers M4 Moonbeam (DISCONTINUED) by julia • April 18, 2013 M4 MOONBEAM Clear M4 MoonBeam cartomizer from Voltage Vapin’! Fits 510 – clear so you can see the liquid in it. Compared to the ce2 of old, these things work great – available at your everyday Voltage Vapin’ low price. Get them before they are gone. ~ 2.0-3.2 ohm No Warranties. No Returns. No Refunds. No Replacements.