Bulb replacement for UV lamps with 9 Watts of power, its square attachment complies with most of the lamps commercially available but we suggest to ask confirmation for your own model before placing orders. To keep the efficiency of the lamp always at an optimum level it is suggested to replace the bulbs every 700/1,000 hours of work. For a correct operation it is recalled to treat with care the bulb when replacing and then dispose the old bulbs between special waste. From the Line of lamps Pics Nails this bulb is suitable to models of lamp with total power of total 36 Watts. (divided into 4 bulbs) To have the replacement of bulbs for the ) Watts model order the other model available : Uv Light Bulbs for Nails 9 Watt Model 1