There is a switch to control: permanent on or on/off shifting; now different color of lamp cap means different color of light. Total length:17cm.

Weight: 46.8g, width:2.7cm Three lights and three LR44 button cell inside; at the depth of 300m, work for 10-15h

Battery operated and replaceable

come in white,blue,green, red, and include 1 complete sets of batteries. Additional batteries can be purchased from a variety of retailers.

under water fishing light