Stacey,
You don't say if the bulb is 110 Volt or some other voltage? Without knowing that I can't steer you to a replacement bulb. But......
You might try B & H Photo and Video, a New York Photography and Video Supplier. They have a reallllllly wide selection and are a very reputable photo supplier.
www.bhphotovideo.com
The link below will take you to their bulb section. You can choose a wattage on the left side and narrow the choices down. There are photos so you can match the bulb visually. Double check the description to make sure you have a GU10 base to be safe, and also to make sure you have the color rating you want, 5100K. And order extra bulbs. You always go through these faster than you think you will. They generally don't last that long.
http://www.bhphotovideo.com/c/shop/6302/Choose_by_Voltage_Wattage_Bulbs_Lamps.html
you can drill down to this menu from their main menu by selecting Lighting and Studio, then under General Lighting Accessories select Bulbs and Lamps, then under Choose by Voltage and Wattage select Bulbs and lamps. On the screen that follows you can make further selections in the left sidebar.
You might also want to look at some of the graduated backgrounds that many of us use to take our photos. They are under Lighting and Studio, then under Studio Equipment click on background Materials, then Graduated Backgrounds. Most of us are using what they refer to as Thunder Gray. This can also be done in a program like Photoshop, but again, I prefer to do it when I shoot and avoid later time spent editing.
You can also make use of most any light provided you correct the photos for color. This is best done on the camera before you take your shot.
You will need to look in your camera manual for the term Color Balance. There should be directions for a custom color balance. The steps will involve putting a sheet of white paper in your tent and turning the lights on. Then have the camera zoom in so that the paper is the only thing in the frame. You then tell the camera to record this as "white" and then save that setting for later recall.
Later on when you use this lighting setup to photograph something you recall that custom setting and use it for those shots.
Basically, the camera knows what white is supposed to look like. If you show it a sheet of white paper that is lit by a light source that is NOT white (most lights are slightly pink, green, blue, etc, depending on the bulb) the camera will correct itself until that white object matches what it knows white should look like. You then save that setting and recall it later on when you need it.
It sounds a bit complicated, but is usually pretty simple. Almost any decent digital camera has this "custom white balance" ability now.
You could also correct the color in a program like Photoshop, but this takes more effort. Better to do it at the camera and eliminate editing later on.
Have fun!!!
Dave
