A white heat lamp will work fine, but a red one is more likely to reduce restlessness (a bright light at night hinders sleep) and pecking. Some people have had no trouble with white heat lamps, but others find that red ones make the chicks calmer. It might also depend on the breed of chicken that you are raising. Both lamp types require careful setup and monitoring, for the safety of the birds and to prevent overheating of bedding and other materials.
A white heat lamp will work fine, but a red one is more likely to reduce restlessness (a bright light at night hinders sleep) and pecking. Some people have had no trouble with white heat lamps, but others find that red ones make the chicks calmer. It might also depend on the breed of chicken that you are raising. Both lamp types require careful setup and monitoring, for the safety of the birds and to prevent overheating of bedding and other materials.