APPROACH TO ADJUSTING LAMPS’ HEIGHTS AND ANGLES: DESIGN AND IMPLEMENTATION OF AN ELEVATING DEVICE FOR ILLUMINATION IN SLEDGE TESTS. Journal of Engineering Studies and Research, [S. l.], v. 28, n. 1, p. 81–89, 2022. Disponível em: https://jesr.ub.ro/journal/article/view/321. Acesso em: 13 sep. 2025.