This lego would look even better with a SW02 (personaly I find the SW02 way too long for most lights.....but this lego is just right for the SW02):
Be advised the LU10 adapter needs long threads that accepts a tailcap (most won´t) as well as a spacer to make contact between the tailcap and the LU10 body (as shown in the second picture). If bored the body might be used with 18500 rechargeables I think.