Style No.: EP5009 35W Product size: 8.89× 7.66× 3.6cm Qty: 50pcs/ ctn Meas: 43× 30× 30cm Nw/ gw: 20/ 21kgs Parameter : Efficiency ----------------> 80% Discharge protecting voltage ---- 400V Output power ---------------34w-36w Lighting voltage ---------- 18KV^ 23KV Restart voltage --------------- 8.7V Stability time --------------------------