OttLiteTruecolor Replacement Bulb

I used the brand for years. It works great! The product arrived earlier than I expected. Great!

Works well.

UPDATE 2/01/17: My bulb purchased here 5 years ago finally died. Not bad but previous one lasted 10 years.UPDATE 2/10/13: My bulb continues to work flawlessly; no flicker, no buzz.I have this  OttLite 641 Executive Desk Lamp, Black  except that it is about 10 years old and the bulb finally died. After reading a lot of reviews here to determine which bulb I needed(which was really confusing) I decided to buy this one which is apparently the "A" style for older lamps with a magnetic ballast. I didn't know if I had a magnetic ballast or not, only that the lamp was older so I put off ordering for a couple months and used another cheap lamp I had. When I noticed that this bulb was on sale for $10.49 I ordered it and crossed my fingers hoping that it was the right one. It was. It fit perfectly and does not flicker or make any kind of buzzing noise. I never knew I could learn to love a lamp but I am so happy to have my lamp back up and giving off great high quality light again.The bulb I purchased here, sold and fulfilled by Amazon replaced one that looked identical to the one in the product picture; it is rounded on the top and the base is grooved. My original bulb was labeled OttLite P(with a circle around it) 13 W and had the number 9808 on the it. The one I received was the same exact shape as the one pictured on Amazon's website, only the packaging was slightly different. I'll try to post a picture.Actual Labeling Printed on the Packaging & Bulb:------------------------------------------------------It is a genuine OttLite product and labeled 13wHD Model# T13330 High Definition Natural Lighting, Ottlite 508 Illumination(60w equivalent), UPC 761712003580 on the packaging. The actual bulb is labeled OttLite 13W, Hg(with a circle around it) ROHS and has the number 1203 on the base plus a "Made in China" stamp.Hopefully this will help someone who has an older  OttLite 641 Executive Desk Lamp, Black  and is unsure which bulb to purchase. My lamp said to replace the bulb with one "Rated 13W Type PL". Replacing it with this T13330 one was the correct choice.I really don't understand why replacing a bulb needs to be so complicated. It's an OttLite bulb for an OttLite lamp and why this manufacturer is unable to produce a list of equivalent bulbs for their own products is really difficult to understand and pretty sad. I bought the bulb directly from Amazon but be aware that if you order from the other third party sellers you may get something completely different. That's why I alway play it safe and order from Amazon when the product descriptions are unclear and the reviews are very mixed. I once spent 2 months sending e-mails back and forth between another bulb company for a different lamp who just would not be convinced that they were wrong. It just wasn't worth the time and effort. At least with Amazon if the light is the wrong one and doesn't fit you can just send it back within 30 days and even get the shipping free if the product description is incorrect or unclear.I hope if you need this type of bulb that you find the correct one on the first try like I did. I'm going to order a spare as I really don't want to go thru this again in another few years. Of course this bulb is made in China and the original was made in Thailand so I'm guessing it's not going to last 10 years like my first one did.Actually, I see that this new bulb has a 1 year warranty. The package says: "From date of purchase, bulb is warranted for one year. If defective due to workmanship or materials it can be replaced, excluding shipping costs, by calling OttLite at 800-842-8848 ext. 500. Proof of purchase is necessary." OttLite 641 Executive Desk Lamp, BlackOttLite 641 Executive Desk Lamp, Black

Easy to reinstall, same colour and light intensity as original, delivered earlier than scheduled. Pricey but well worth it rather than replace the table top fixture I've owned for the past 12 years

Item came on time. Easy to install (bayonet style). Light is bright.