Escolite Nurse Penlight White and Soft White
Link to my review on Amazon:
***My Personal Review***
Great little penlight for anyone but specifically designed for doctors and nurses. It has measurements on the sides including millimeters. Comes in both a soft white and a bright white color but both are great - the soft white has a yellowish hue to it but it all depends on your preference. These each take 2 AAA batteries that slide in the top end and you just screw the top back on and click it to turn the light on. Easy to use and also has the attachment for your pocket. The pens themselves are a really pretty deep blue color so the measurements in white are very easy to distinguish.