by Hai Le and Kien Vu, PATH To accompany the article “Do battery-free solar refrigerators work in low-light conditions?” in this month’s newsletter, Optimize has published a photo set on Flickr that reveals how the solar refrigerators were installed and tested. The photo set includes photographs of the installation and initial testing of two True Energy BLF 100 DC Sure Chill® vaccine refrigerators in Vietnam. The first vaccine refrigerator was installed in Phu Tho province in the north of Vietnam, while the second was installed in Ben Tre province in the south. Access the photo slideshow directly. To comment, make sure you are logged in and click Reply.