To provide funds for defraying expenses for the installation, maintenance and operation of the road-lighting service to the district, the district board may provide for a tax not exceeding one-tenth of one percent (0.001) of the real market value of all taxable property within the district, computed in accordance with ORS § 308.207. Upon approval of the majority of the electors voting at a special election called for such purpose the board may levy a special tax of not to exceed one-fourth of one percent (0.0025) of the real market value of all taxable property within the district for this purpose, computed in accordance with ORS § 308.207. [Amended by 1967 c.293 § 33; 1969 c.667 § 29; 1991 c.459 § 419]