File:Disabled blaze spawner.png

Summary
A blaze spawner disabled with four Jack o'lanterns. This screenshot was taken in Bedrock Edition. This gives just enough light for the spawner to be disabled. It still poofs with flame around the spawn block, but no blaze appears.

This should work with a combination of any four light sources having a luminance of 15, such as:
 * Jack o'lanterns
 * Lanterns
 * Campfires
 * Sea lanterns
 * Redstone lamps
 * Glowstones