Welcome Hen. It would help if you could be more specific, there are many "good" ones availible. Brightness is only one factor, and not really that big of one for most uses. Size, price, UI, materials, LED, hotwire etc would get you better answers IMO. Some things to consider. Two notables I have, SureFire U2 is an excellent light but you have to find a body to fit 18650. I didn't have much trouble finding one. Another is the LumaPower M1 Hunter. I bought the Seoul LE for it, absolutely STELLAR beam on it and it will take the above cells. 2 stage Lo/Hi pretty foolproof IMO. Will tailstand too. Comes in black or HA. Hope you find what you like.