Bests & Worsts Reviews from Amazon

Amazon has a great price for this. I found this exact same bulb at Michaels and used a 40% coupon to pay for it, but wound up returning it to Michaels and purchasing it from Amazon instead because even with the 40% off it was much more expensive at Michaels than Amazon. Be sure to order the correct type of 13-W bulb for your ott-lite. They now have 2 types, 1 has a magnetic ballast and 1 has an electronic ballast. Here is some info from ott-lite: Please Read This Important Information Regarding 13 Watt Replacement Tubes Before Purchasing There are two different types of 13 Watt Replacement Tubes available from OttLite. Although they look similar, there is an important difference that will affect the performance and durability of the bulb itself. Two Types of 13 Watt Tubes The older type of 13 Watt Replacement Tube is used in lamps with a magnetic ballast (Option 1). The other, newer kind is used in lamps with an electronic ballast (Option 2). This is an important factor when purchasing a replacement tube, so we've provided this page to provide you the information you need to purchase the correct replacement tube. How Do I Tell What Tube I Need? Start Here: Step 1: When did you purchase your lamp? * If you purchased your lamp before January 2008, you need to purchase Option 1. Click here to buy now. * If you purchased your lamp after January 2008, proceed to step 2. Step 2: Is there an "E" on your tube, lamp or bulb box? * On products sold after January 2008, there will be an "E" marking on lamps (see images below) requiring Option 2 type of tubes. If your tube, lamp or tube box has an "E" on it, you would need to choose Option 2. Click here to buy now. Step 3: No Product Markings? * If your lamp, tube or tube box does not have any of the markings, choose Option 1. Keep in mind that the "E" may not necessarily appear on all three locations (the lamp, the box or the tube itself). If you see the "E" on any one or more, you will need Option 2. If not, you need Option 1.