Pro Signature 36" x 48" White Interior Softbox

SKU: 4836

  • 7-year warranty

  • Double layer heat shield fabric

  • Spring Steel Rods

  • Tent Style Vents

  • Up to 1,000 watts

  • Softbox

  • Removable Outer Diffusion Fabric

  • Removable Inner Baffle

  • Assembly Rods

  • Protective Carry Case

 Where to Buy

Product Details

Built to last.
The Westcott softbox is rated one of the best in the industry for high-quality components and rugged design. The durable shell and double layer heat-shield fabric offer heat resistance up to 1000 watts.

Solid steel assembly rods.
Soft box rods are designed to flex and are constructed from solid steel.

Heat vents.
Tent-style heat vents allow for additional ventilation when used with hot lights. However, the heat vents are not required to be used when using hot lights. They are only optional as the fabric shell is designed to withstand the rated maximum wattage.

Durable corners.
The weakest area of a softbox are the corners where the rods are placed. Therefore, Westcott provides a double layer of loop tape over this section to protect against softbox rods protruding through the fabric.

Seven-year warranty.
We are so confident in the construction of our Pro Signature softboxes, we back them with a seven-year warranty.

Removable inner baffle.
The removable full stop inner baffle helps to soften and spread the light when used in conjunction with strobes and hot lights. (Note: When using fluorescents, we recommend this inner baffle is completely removed. Due to the diffuse nature of the fluorescent lamp itself, it is not needed to achieve even and diffused lighting and many times can flatten the light too much.

Removable outer diffusion.
A wide 2" layer of loop tape allows the front diffusion panel to either be recessed in for more direction and control or placed flush with the edge of the softbox for a wider lighter spread. In addition, this wide loop tape area provides for the attachment of accessories such as egg-crate grids.

Attach grids.
Egg-crate grids can easily be attached to the softbox using the 2" loop tape.

Included carry case.
Each softbox includes a carry case with handle strap.

Perfect paired.
When used with a Westcott Spiderlite series head no adapter ring is needed, saving you time and money.

Product Specifications


SKU: 4836
UPC: 817967048361
Warranty: 7 Years
Item Length: 25.00 in. / 63.50 cm
Item Width: 31.00 in. / 78.74 cm
Item Height: 42.00 in. / 106.68 cm
Item Weight: 4.0 lbs. / 1.8 kg
Shipping Length: 38.25 in. / 97.16 cm
Shipping Width: 9.00 in. / 22.86 cm
Shipping Height: 3.75 in. / 9.53 cm
Shipping Weight: 5.1 lbs. / 2.3 kg
Materials: Nylon, Spring Steel

Light Modifiers

Mount Type: Speedring required
Interior Color: Silver
Compatibility: Studio Lights
Baffle Density: Full-Stop
Baffle Length: 68.60 in. / 174.24 cm
Baffle Width: 54.00 in. / 137.16 cm
Rod Diameter: 0.25 in. / 0.64 cm
Rod Length: 92.70 in. / 235.46 cm
Diffuser Length: 76.20 in. / 193.55 cm
Diffuser Width: 106.70 in. / 271.02 cm
Diffuser Density: 1-Stop
Maximum Watts: 1000W
Rod Material: Metal

Essential Accessories

Essential Accessories

Quality Construction featured on a Westcott Pro Softbox

Built to Last

With over 20 years of experience developing photography lighting modifiers, Westcott has maintained a commitment to using quality materials and superior construction. These quality components include solid steel assembly rods, dual-layered corners, heat shield fabric, and tent-style vents. This confidence in quality is supported by 5 and 7 year warranties on all Westcott Pro and Pro Signature Softboxes.

Take the Heat

All Westcott Pro softboxes, strips, and octabanks are rated for use at up to 1000-watts. The reflective silver and white fabrics that line these modifiers not only produces an optimum light output, but also serves as a double-layer of heat resistance. Tent-style heat vents are also included in the body of these professional modifiers, providing extra heat ventilation and protection throughout long shoots.

Final Images by Jim Schmelzer with Westcott Pro Softboxes
Diffusion Panels featured on a Westcott Pro Softbox

Pure-Color Diffusers

Westcott softbox diffusers and inner-baffles are constructed with an all-natural, unbleached nylon fabric. Unlike processed diffusion fabrics, these professional panels will soften your light source, without changing its color temperature. Diffusion panels are available in full, half, and quarter stops.

The Perfect Pair

For superior lighting, pair any Westcott Pro softbox with the Spiderlite TD6. The Spiderlite TD series of continuous lighting is amongst the most popular daylight or tungsten lighting on the market. Featuring a 1200 effective-watt output, the power of the Spiderlite TD6 is brilliantly softened, directed, and modified by any Westcott Pro Softbox. Pairing these two powerhouse products together is also cost effective. With a built-in adapter, the Spiderlite TD6 does not require additional components or speedrings to partner with any Pro Softbox. Three inclusive kits are also available featuring both the Spiderlite TD6 and a Westcott softbox.

Westcott Pro Softbox and Spiderlite TD6 Assembly
Photographer Shooting with A Westcott Pro Octabank and Stripbank

Wide Variety

Westcott Pro Softboxes are available in a large array of styles and sizes. Ranging from 12” x 16” to 54” x 72” options, softboxes are available in both standard or shallow versions. Standard stripbanks, asymmetrical stripbanks, and octabanks are also available, featuring the same quality materials and construction. All Westcott Pro modifiers include a carry case for storage and travel.

Unique Design

Westcott softboxes are not designed to be industry standards, but to be light specific. Each Pro Softbox is manufactured to maximize specific light quality and projection. Standard Pro Softboxes are developed for strobe photographers with a deep profile allowing for even light output of less than 1/2 stop from center to edge. Shallow Pro Softboxes cater to continuous fluorescent photographers, featuring a narrow profile for maximized output.

Behind the Scenes Image with a Westcott Pro Octabank