West Germany BST51 priced supply proof flashlight batteries Series Features 1. ABS plastic shell molding, has good impact resistance and corrosion resistance. 2, high luminous efficiency. 3, portable and easy to use. The main technical parameters Model Voltage (V) bulb (V / A) Battery (#) Number of Batteries Ex-mark protection class BST-3 3 2.4 / 0.25 1 2 ExdibⅡT6 IP65 BST-4.5 4.5 3.6 / 0.3 3 BST-6 6 5.4 / 4 0.5 Scope 1, explosive gas atmospheres dangerous places: Zone 1, Zone 2. 2, explosive gas atmospheres: ⅡA, ⅡB, ⅡC. 3, temperature groups: T1-T6. This product is in strict accordance with quality assurance ISO9001: 2008 international quality management system standards for quality control to ensure product quality is higher than the national standard, fully meet the design requirements, the product of 3-year warranty from date of purchase 3 years under normal use any failure by the company responsible for maintenance free.