100PCS/LOT 1/4W 15R/18R/20R/22R/27R metal film resistor 15/18/20/22/27 ohm 1% 0.25W resistors color ring resistance100PCS/LOT 1/4W 15R/18R/20R/22R/27R metal film resistor 15/18/20/22/27 ohm 1% 0.25W resistors color ring resistance