Bio-Rad UView™ 6x Loading Dye plus Mini Transilluminator - Manual (Page 10)

UView Mini Transilluminator 9
6. Insert the new lamp into the lamp holders and rotate it until
the pins are in a horizontal position. Turn the UV bulb until a
locking sound from the UV seats is heard.
7. Place the top cover back on the device and fix the 4 screws
back into the top-cover holes. Check the UV bulb function.
Use the UV shield to protect your eyes before turning the
power on. If the UV bulb does not work, check whether the
bulb is installed properly.