T5 light bar with electronic ballast, including bulb / connection cable 1.8m with straight plugs / light color 840 plastic housing with switch and diffuser, can be connected in series with the included connection adapter, max. 12 lights / 420 watts, attachment using the included mounting clips for wall and ceiling, connection cable optionally available, luminous flux 8 W = 50 lm/W 13 W = 73 lm/W 21 W = 79 lm/W 28 W = 84 lm/W 35 W = 83 lm/W, electronic ballast efficiency A2 = 8 W / 13 W / 21 W / 28 W, electronic ballast efficiency A3 = 35 W