We don't really like the direction either of these are headed (#44 and #45). We would prefer the company name with just a white background and a unique image, not industry related, on the side. Also, use a different font and color green.
#52 is headed in the right direction, but we still feel like it could be improved. The color needs to be a darker green. Don't make the letter all capitalized. Discount Low Voltage instead of DISCOUNT LOW VOLTAGE Use a different font More image ideas. We like the 3 dimensional look of #56, #72 and #69