D.C. Altamirano-Juárez, H.E. Solís-Correa*, J.J. Castro-Peña* Science Mastery Program in Materials Speciality, CINVESTAV-IPN Unidad Querétaro. Centro Universitario, Cerro de las Campanas s/n, C.P. 76010 Querétaro, Qro. México. *Basics Science Department, Universidad Autónoma Metropolitana-Azcapotzalco. San Pablo 180, Col. Reynosa Tamaulipas, Delegación Azcapotzalco; C.P. 02200, D.F.

We studied electrical measurements on flexible photovoltaic panel (a-Sl). The illumination conditions, ambiental temperature and circuit design, we were controled. There were subject into different durving grades at different illumination levels. We watched that the efficiency in the hi powerpoint was influenced by optic effects. It showed the electrical equivalent resistance effects. We also found that there is a curving range, independently of the source distance we obtained an increase cell performance. The important factors were mechanics flexion in the bonding strength, and in the optical covering contribution as answer.