Use this calculator to determine either the size of the circle of light, how far away you should place the light, or which degree of lens you should use. Put in two of the values and then hit calculate to find the third value.
Values can be in feet or meters, but both values must match.
Free shipping applies only to standard ground shipping within the forty-eight (48) contiguous United States, on orders that use the FreeGroundShipping coupon code and have items that qualify for free shipping. Only the items that qualify will get free shipping; orders that have both items that qualify and items that do not qualify will see shipping charges for the items that do not qualify.
Items that qualify will have a free shipping indicator on the item page and in the shopping cart.
The FreeGroundShipping coupon must be used when the order is placed. The code will not be retroactively applied.