Security business with vision,Logo Design

This is what Scared of the Dark Lighting was looking for in their logo design

Scared of the Dark Lighting is a New Business in Sydney Australia ,that provides Security Solutions with Vision. The Security Solution with vision for the future is about providing security for Homes, Transport and Personal.The Logo needs to be able to be recognized if put on small Products but also able to expand if stretched for larger Advertising.I have been trying to use the colors Black, Yellow and White, but open for suggestions I have been trying to Identify and be able to show the difference with in a logo between dark and Light, with the Lighter side being the Smarter more efficient Choice. Read more