Q. What is Horav Miller’s opinion on using the Shabled lights on Shabbos? it has a Star K and other hecherim. It is basically a small drawer covering a bright LED light, that stays on the whole Shabbos. You control the amount of light by opening and closing the drawer. (pictures included).

A. Horav Shlomo Miller’s Shlit’a opinion is in principle to agree to Horav Moshe Heinemann’s Shlit’a certification of the Shabled light use, when left turned on the entire Shabbos and when only the drawer is opened or closed to control the amount of light emitted.
However he disagrees with the New Square Kashrus Council certification that permits moving the unit when permitted utensils such as a watch or jewelry are placed inside the drawer. The reason being, is that the Rov considers the unit to be muktza machmas chisaron kis, since it is an electrical utensil dedicated to giving light that one does not usually use for any other purposes, even when another object is placed on the unit’s drawer. (See similar in Piskei Teshuvos 308: 2: n.9).
Therefore, it cannot be moved even when one needs its place, (lertzorech mekomo), or its use somewhere else (letzorech guffo).
In essence, this new light is not in Halacha much better than the one offered by Kosher Innovations on 2004, that could also not be moved from its place.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a